Portal:Number theory/Did you know
- ...that every positive integer can be expressed as the sum of four squares of integers?
- ...that it is impossible to separate any power higher than the second into two like powers?
- ...that only 35 even numbers have been identified which are not the sum of a pair of Twin primes?
- ...that 16 is the only integer that satisfies x^y=y^x for distinct positive integers x and y, being 4^2 = 2^4