279

279 is an odd composite number with two prime factors. Waring’s Conjecture is g(n)=2n+⌊(3/2)n⌋-2. When 8 is plugged in for n, the result is 279. That means that any positive integer can be formed with at most 279 numbers to the 8th power. 279 is the smallest number whose product of digits is 7 times the sum of its digits. 279 can be written as the sum of 4 nonzero perfect squares.