Smallest Numbers by Number of Letters

For each number, guess the smallest number that when written out, contains that number of letters. Positive numbers only
Let me know if you spot any mistakes
Quiz by
Cog
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Last updated: October 9, 2025
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First submittedAugust 5, 2020
Times taken213
Average score7.1%
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Number of letters
Number
3
One
4
Four
5
Three
6
Eleven
7
Fifteen
8
Thirteen
9
Seventeen
10
Twenty four
11
Twenty three
12
Seventy three
13
Three thousand
14
Eleven thousand
15
Fifteen thousand
16
One hundred and one
17
One hundred and four
18
One hundred and three
19
One hundred and eleven
20
One hundred and fifteen
21
One hundred and thirteen
22
One hundred and seventeen
23
One hundred and twenty four
24
One hundred and twenty three
25
One hundred and seventy three
26
Three hundred and twenty three
27
Three hundred and seventy three
28
One thousand one hundred and four
29
One thousand one hundred and three
30
One thousand one hundred and eleven
31
One thousand one hundred and fifteen
32
One thousand one hundred and thirteen
33
One thousand one hundred and seventeen
34
One thousand one hundred and twenty four
35
One thousand one hundred and twenty three
36
One thousand one hundred and seventy three
37
One thousand three hundred and twenty three
38
One thousand three hundred and seventy three
39
Three thousand three hundred and twenty three
40
Three thousand three hundred and seventy three
41
Eleven thousand three hundred and seventy three
42
Thirteen thousand three hundred and twenty three
43
Thirteen thousand three hundred and seventy three
44
Seventeen thousand three hundred and seventy three
45
Twenty three thousand three hundred and twenty three
46
Twenty three thousand three hundred and seventy three
47
Seventy three thousand three hundred and seventy three
48
One hundred and one thousand one hundred and twenty three
49
One hundred and one thousand one hundred and seventy three
Number of letters
Number
50
One hundred and one thousand three hundred and twenty three
51
One hundred and one thousand three hundred and seventy three
52
One hundred and three thousand three hundred and twenty three
53
One hundred and three thousand three hundred and seventy three
54
One hundred and eleven thousand three hundred and seventy three
55
One hundred and thirteen thousand three hundred and twenty three
56
One hundred and thirteen thousand three hundred and seventy three
57
One hundred and seventeen thousand three hundred and seventy three
58
One hundred and twenty three thousand three hundred and twenty three
59
One hundred and twenty three thousand three hundred and seventy three
60
One hundred and seventy three thousand three hundred and seventy three
61
Three hundred and twenty three thousand three hundred and seventy three
62
Three hundred and seventy three thousand three hundred and seventy three
63
One million one hundred and three thousand three hundred and seventy three
64
One million one hundred and eleven thousand three hundred and seventy three
65
One million one hundred and thirteen thousand three hundred and twenty three
66
One million one hundred and thirteen thousand three hundred and seventy three
67
One million one hundred and seventeen thousand three hundred and seventy three
68
One million one hundred and twenty three thousand three hundred and twenty three
69
One million one hundred and twenty three thousand three hundred and seventy three
70
One million one hundred and seventy three thousand three hundred and seventy three
71
One million three hundred and twenty three thousand three hundred and seventy three
72
One million three hundred and seventy three thousand three hundred and seventy three
73
Three million three hundred and twenty three thousand three hundred and seventy three
74
Three million three hundred and seventy three thousand three hundred and seventy three
75
Eleven million three hundred and seventy three thousand three hundred and seventy three
76
Thirteen million three hundred and twenty three thousand three hundred and seventy three
Number of letters
Number
77
Thirteen million three hundred and seventy three thousand three hundred and seventy three
78
Seventeen million three hundred and seventy three thousand three hundred and seventy three
79
Twenty three million three hundred and twenty three thousand three hundred and seventy three
80
Twenty three million three hundred and seventy three thousand three hundred and seventy three
81
Seventy three million three hundred and seventy three thousand three hundred and seventy three
82
One hundred and one million one hundred and twenty three thousand three hundred and seventy three
83
One hundred and one million one hundred and seventy three thousand three hundred and seventy three
84
One hundred and one million three hundred and twenty three thousand three hundred and seventy three
85
One hundred and one million three hundred and seventy three thousand three hundred and seventy three
86
One hundred and three million three hundred and twenty three thousand three hundred and seventy three
87
One hundred and three million three hundred and seventy three thousand three hundred and seventy three
88
One hundred and eleven million three hundred and seventy three thousand three hundred and seventy three
89
One hundred and thirteen million three hundred and twenty three thousand three hundred and seventy three
90
One hundred and thirteen million three hundred and seventy three thousand three hundred and seventy three
91
One hundred and seventeen million three hundred and seventy three thousand three hundred and seventy three
92
One hundred and twenty three million three hundred and twenty three thousand three hundred and seventy three
93
One hundred and twenty three million three hundred and seventy three thousand three hundred and seventy three
94
One hundred and seventy three million three hundred and seventy three thousand three hundred and seventy three
95
Three hundred and twenty three million three hundred and seventy three thousand three hundred and seventy three
96
Three hundred and seventy three million three hundred and seventy three thousand three hundred and seventy three
97
One billion one hundred and three million three hundred and seventy three thousand three hundred and seventy three
98
One billion one hundred and eleven million three hundred and seventy three thousand three hundred and seventy three
99
One billion one hundred and thirteen million three hundred and twenty three thousand three hundred and seventy three
100
One billion one hundred and thirteen million three hundred and seventy three thousand three hundred and seventy three
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16 Comments
+1
Level 81
Aug 5, 2020
zero for the 2nd answer ?
+1
Level 77
Aug 5, 2020
Thanks for pointing out that mistake. It's now been changed
+1
Level 69
Sep 26, 2025
How about minus ten for eight letters then?
+1
Level 77
Sep 26, 2025
Good point. I'll specify no negative numbers
+2
Level 85
Sep 26, 2025
May want to specify "and" is required? Tried 104 ("one hundred four") for 14
+1
Level 77
Sep 26, 2025
I think that goes without saying because I see no reason to assume it wouldn't
+1
Level 70
Sep 26, 2025
can you accept four for zero? zero is technically not a number
+1
Level 77
Sep 26, 2025
erm hmm, yeah you're probably right
+2
Level 79
Sep 26, 2025
what is it then, a vegetable?
+1
Level 77
Sep 27, 2025
I'll specify positive numbers only
+1
Level 75
Sep 26, 2025
29-35 are incorrect, i believe!

29: 1103 < 11073

30: 1111 < 13023

31: 1115 < 13073

32: 1113 < 17073

33: 1117 < 23023

34: 1124 < 23073

35: 1123 < 73073

+1
Level 77
Sep 27, 2025
Good spot! Now updated
+1
Level 56
Oct 9, 2025
28 also; 1104
+1
Level 77
Oct 9, 2025
Good spot too!
+1
Level 78
Sep 27, 2025
Ooff, that was a fun but tricky challenge! Made it as far as 70 before my brain gave up on me (and forgot to fill in 14 and 15).
+1
Level 77
Sep 28, 2025
Yeah it wasn't supposed to be this long but I got carried away. Very challenging