Factors of 42

The factors of 42 are 1, 2, 3, 6, 7, 14, 21 and 42. That is 8 factors in total.

A factor of 42 is a whole number that divides 42 exactly, with no remainder. 42 is a composite number because it has factors other than 1 and itself.

Factor pairs of 42

Two numbers that multiply to give 42:

• 1 × 42 = 42
• 2 × 21 = 42
• 3 × 14 = 42
• 6 × 7 = 42

Prime factorization of 42

42 = 2 × 3 × 7. The prime factors of 42 are 2, 3 and 7.

Quick facts about 42

• Is 42 prime? No.
• Even or odd: even.
• Sum of its factors: 1 + 2 + 3 + 6 + 7 + 14 + 21 + 42 = 96.

Factors of nearby numbers

More about 42: 42 squared · square root of 42 · 42 in binary · 42 in Roman numerals.

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