# Category Elimination - Numbers (Hard Version)

In each group, name any answer which matches the first category to reveal the second category, then name any answer which applies to both categories to reveal a third, and so on.
You will get a hint on the last prompt of a category
None of these are going to require tedious math (e.g. 37 * 29). Remember to try easy cases first like 37*2*5 = 37*10 = 370.
# = the number of answers possible. Answer must correspond to the highlighted yellow box.
Quiz by Dollyfroggy
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Last updated: August 24, 2022
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 First submitted July 22, 2022 Times taken 694 Average score 65.0% Rating 4.57 Report this quiz Report
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 Green Categories 1000 Integer between 0 and 1000 ✓ 63 ... with its digits adding up to 10 ✓ 39 ... that shares a factor with 60 ✓ 14 ... with a 0 ✓ 1 ... that is a multiple of 27 640 What can you multiply 2^7 by to get a 0 in it? Orange Categories 120 3-digit integer with digits in descending order ✓ 56 ... with no consecutive numbers ✓ 28 ... with a two-digit largest prime factor ✓ 18 ... not starting with 9 ✓ 1 ... with a largest prime factor between 80 and 90 830 What two one-digit numbers would make it really easy to try different primes?
 Blue Categories 34 Year from 1950 to 2020 that no country joined the UN in ✓ 18 ... that is odd ✓ 7 ... with all unique digits ✓ 3 ... that is a multiple of 3 ✓ 1 ... but doesn't end in 3 2019 The last country to join was in 2011, see if any recent years work. Purple Categories 59 Integer with 4 factors between 1 and 200 ✓ 30 ... with two non-zero digits ✓ 17 ... that is not divisible by 2 ✓ 4 ... with only one-digit prime factors ✓ 1 ... that has only one prime factor 27 How can a number have 1 prime factor but 4 factors?