3 ms·
I think, in fact, for every prime number p at least 5, 4 mod p is (congruent to) 4.
by JohnKemeny 1y ago
I think, in fact, for every prime number p at least 5, 4 mod p is (congruent to) 4.
- oh_my_goodness 1y agoEven without the restriction to primes, that feels like a pretty good guess!
- freehorse 1y agoOr for less than 5.
- oh_my_goodness 1y agolol good point.