Factors / Factors of 151

Factors of 151

1, 151

151 is prime: only factor pair is (1, 151), confirmed by trial division up to √151 ≈ 12.3 turning up nothing else. 151's full pair list is (1, 151), for 2 divisors in total. 151's divisors other than 151 itself sum to just 1, 150 below 151: the common deficient case. 151 is odd, digit sum 7 for 151; none of 2-12 divide 151 evenly. 151 has 2 divisors; 150 has 12 and 152 has 8, so 150 wins here. 151 divided by its largest divisor, 1, gives 151.