Factors / Factors of 127

Factors of 127

1, 127

127 is prime: only factor pair is (1, 127), confirmed by trial division up to √127 ≈ 11.3 turning up nothing else. 127's full pair list is (1, 127), for 2 divisors in total. 127's divisors other than 127 itself sum to just 1, 126 below 127: the common deficient case. 127 is odd, digit sum 10 for 127; none of 2-12 divide 127 evenly. 127 has 2 divisors; 126 has 12 and 128 has 8, so 126 wins here. 127 divided by its largest divisor, 1, gives 127.