Factors of 78

The factors of 78 are 1, 2, 3, 6, 13, 26, 39 and 78. That is 8 factors in total.

A factor of 78 is a whole number that divides 78 exactly, with no remainder. 78 is a composite number because it has factors other than 1 and itself.

Factor pairs of 78

Two numbers that multiply to give 78:

1 × 78 = 78
2 × 39 = 78
3 × 26 = 78
6 × 13 = 78

Prime factorization of 78

78 = 2 × 3 × 13. The prime factors of 78 are 2, 3 and 13.

Quick facts about 78

Is 78 prime? No.
Even or odd: even.
Sum of its factors: 1 + 2 + 3 + 6 + 13 + 26 + 39 + 78 = 168.

Factors of nearby numbers

Number	Factors
74	1, 2, 37, 74
75	1, 3, 5, 15, 25, 75
76	1, 2, 4, 19, 38, 76
77	1, 7, 11, 77
79	1, 79
80	1, 2, 4, 5, 8, 10, 16, 20, 40, 80
81	1, 3, 9, 27, 81
82	1, 2, 41, 82

More about 78: 78 squared · square root of 78 · 78 in binary · 78 in Roman numerals.

Another number? Try the prime number checker, the GCF and LCM calculator or see all factor lists.