3 ms·
Don’t know the name of the “theorem”, but I know the rhyme: 91 is not a prime that one trips me every time.
by credit_guy 5y ago
Don’t know the name of the “theorem”, but I know the rhyme:
91 is not a prime
that one trips me every time.
- tobr 5y agoBut that doesn’t really help you remember 91, because the number is not part of the rhyme.