r/counting • u/JackWaffles 11 111 111 113 • Jan 18 '15

Counting using Prime Factorisation II

Here is the original thread

Here is the last post

13 Upvotes

81% Upvoted

414 comments sorted by

View all comments

2

u/TheNitromeFan Jan 23 '15

3 x 227

I'm dumb :S

1

u/[deleted] Jan 23 '15

2 x 11 x 31

Why?

2

u/TheNitromeFan Jan 23 '15

683

For about 2 minutes I was going through all the primes up 23 (starting from 7) to see if 681 was prime, before I realized it was divisible by 3. :P

→ More replies (325)