Is 250 a prime number?
No, 250 is not a prime number. It is divisible by 2: 250 = 2 × 125.
Is 250 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 √250 ≈ 15.81. If none of them divides 250, it is prime.
- 3
2 divides 250 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 250 = 2 \times 5^{3} \]Testing 250 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 250 ÷ 2 | divides exactly (125) |
| 3 | 250 ÷ 3 | leaves 1 |
| 5 | 250 ÷ 5 | divides exactly (50) |
| 7 | 250 ÷ 7 | leaves 5 |
| 11 | 250 ÷ 11 | leaves 8 |
| 13 | 250 ÷ 13 | leaves 3 |
Questions
Is 250 a prime number?
No, 250 is not a prime number. It is divisible by 2: 250 = 2 × 125.
What is the next prime after 250?
251.
What is the prime number before 250?
241.
What are the factors of 250?
1, 2, 5, 10, 25, 50, 125, 250.