Is 1375 a prime number?
No, 1375 is not a prime number. It is divisible by 5: 1375 = 5 × 275.
Is 1375 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 √1375 ≈ 37.08. If none of them divides 1375, it is prime.
- 3
5 divides 1375 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 1375 = 5^{3} \times 11 \]Testing 1375 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 1375 ÷ 2 | leaves 1 |
| 3 | 1375 ÷ 3 | leaves 1 |
| 5 | 1375 ÷ 5 | divides exactly (275) |
| 7 | 1375 ÷ 7 | leaves 3 |
| 11 | 1375 ÷ 11 | divides exactly (125) |
| 13 | 1375 ÷ 13 | leaves 10 |
| 17 | 1375 ÷ 17 | leaves 15 |
| 19 | 1375 ÷ 19 | leaves 7 |
| 23 | 1375 ÷ 23 | leaves 18 |
| 29 | 1375 ÷ 29 | leaves 12 |
| 31 | 1375 ÷ 31 | leaves 11 |
| 37 | 1375 ÷ 37 | leaves 6 |
Questions
Is 1375 a prime number?
No, 1375 is not a prime number. It is divisible by 5: 1375 = 5 × 275.
What is the next prime after 1375?
1381.
What is the prime number before 1375?
1373.
What are the factors of 1375?
1, 5, 11, 25, 55, 125, 275, 1375.