Factors / Factors of 143

Factors of 143

1, 11, 13, 143

143 breaks into 2 pairs, tested up to √143 ≈ 12.0; each pair multiplies back to 143 exactly. 143's full pair list is (1, 143), (11, 13), for 4 divisors in total. 143's divisors other than 143 itself sum to just 25, 118 below 143: the common deficient case. 143 is odd, digit sum 8 for 143; small divisors of 143 include 11. 143 has 4 divisors; 142 has 4 and 144 has 15, so 144 wins here. 143 divided by its largest divisor, 13, gives 11.