# Prime Numbers Up to 300

Can you name all the prime numbers between 1 and 300?
Quiz by HinesBrothers
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Last updated: May 26, 2020
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 First submitted October 19, 2018 Times taken 405 Average score 87.1% Report this quiz Report
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 Number 2 3 5 7 11 13 17 19 23
 Number 29 31 37 41 43 47 53 59 61
 Number 67 71 73 79 83 89 97 101 103
 Number 107 109 113 127 131 137 139 149 151
 Number 157 163 167 173 179 181 191 193 197
 Number 199 211 223 227 229 233 239 241 251
 Number 257 263 269 271 277 281 283 293
+2
Level 61
Oct 25, 2018
Awesome quiz! =)
+1
Level 70
Jul 11, 2019
Nice! 61/62
+1
Level 42
Aug 1, 2020
62 out of 62

1 min and 35 seconds left

AWESOME. LOL

+1
Level 63
Jul 12, 2022
Kind of easy, I suppose. It's just typing a lot of numbers ending in 1, 3, 7 and 9 and seeing what sticks.
+1
Level 40
Nov 10, 2022
Enter 21 and realize the digits sum to 3. This can not be prime. Rather than deleting the last digit, enter another 1.

211 is prime. This also works with 27 since 2+7 sums to a multiple of 3. 277 and 271 are prime.

Other first two digits follow a pattern. 127 151 157 181 211 241 271 are prime.

If three digits sum to a multiple of 3 the number is not prime. 111 117 171 177 207. Divide these numbers by three as a proof.

Of course some memorize. Let me know how You memorize prime numbers, please.