Factors / Factors of 277

Factors of 277

1, 277

277 is prime: only factor pair is (1, 277), confirmed by trial division up to √277 ≈ 16.6 turning up nothing else. 277's full pair list is (1, 277), for 2 divisors in total. 277's divisors other than 277 itself sum to just 1, 276 below 277: the common deficient case. 277 is odd, digit sum 16 for 277; none of 2-12 divide 277 evenly. 277 has 2 divisors; 276 has 12 and 278 has 4, so 276 wins here. 277 divided by its largest divisor, 1, gives 277.