Is 38 a prime number?
No, 38 is not a prime number. It is divisible by 2: 38 = 2 × 19.
Is 38 prime?
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A prime number has exactly two factors: 1 and itself.
- 2
It is enough to test the primes up to √38 ≈ 6.16. If none of them divides 38, it is prime.
- 3
2 divides 38 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 38 = 2 \times 19 \]
Testing 38 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 38 ÷ 2 | divides exactly (19) |
| 3 | 38 ÷ 3 | leaves 2 |
| 5 | 38 ÷ 5 | leaves 3 |
Questions
Is 38 a prime number?
No, 38 is not a prime number. It is divisible by 2: 38 = 2 × 19.
What is the next prime after 38?
41.
What is the prime number before 38?
37.
What are the factors of 38?
1, 2, 19, 38.