Factors / Factors of 123

Factors of 123

1, 3, 41, 123

123 breaks into 2 pairs, tested up to √123 ≈ 11.1; each pair multiplies back to 123 exactly. 123's full pair list is (1, 123), (3, 41), for 4 divisors in total. 123's divisors other than 123 itself sum to just 45, 78 below 123: the common deficient case. 123 is odd, digit sum 6 for 123; small divisors of 123 include 3. 123 has 4 divisors; 122 has 4 and 124 has 6, so 124 wins here. 123 divided by its largest divisor, 41, gives 3.