Factorization
204 = 2 × 2 × 3 × 17
204 has 12 divisors: 1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204
Sum of all divisors other than 204:
300
Sums & differences
Difference of 2 squares: 204 = 202 - 142 = 522 - 502
Goldbach conjecture: 204 = 199 + 5 = 197 + 7 = 193 + 11 = 191 + 13 = 181 + 23 = 173 + 31 = 167 + 37 = 163 + 41 = 157 + 47 = 151 + 53 = . . . (only the first 10 pairs are shown)
