The factors of 19 are 1 and 19. That is 2 factors in total.
A factor of 19 is a whole number that divides 19 exactly, with no remainder. 19 is a prime number: its only factors are 1 and itself.
Two numbers that multiply to give 19:
19 is prime, so its prime factorization is just 19.
| Number | Factors |
|---|---|
| 15 | 1, 3, 5, 15 |
| 16 | 1, 2, 4, 8, 16 |
| 17 | 1, 17 |
| 18 | 1, 2, 3, 6, 9, 18 |
| 20 | 1, 2, 4, 5, 10, 20 |
| 21 | 1, 3, 7, 21 |
| 22 | 1, 2, 11, 22 |
| 23 | 1, 23 |
More about 19: 19 squared · square root of 19 · 19 in binary · 19 in Roman numerals.
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