Is 248 a prime number?
No, 248 is not a prime number. It is divisible by 2: 248 = 2 × 124.
Is 248 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 √248 ≈ 15.75. If none of them divides 248, it is prime.
- 3
2 divides 248 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 248 = 2^{3} \times 31 \]Testing 248 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 248 ÷ 2 | divides exactly (124) |
| 3 | 248 ÷ 3 | leaves 2 |
| 5 | 248 ÷ 5 | leaves 3 |
| 7 | 248 ÷ 7 | leaves 3 |
| 11 | 248 ÷ 11 | leaves 6 |
| 13 | 248 ÷ 13 | leaves 1 |
Questions
Is 248 a prime number?
No, 248 is not a prime number. It is divisible by 2: 248 = 2 × 124.
What is the next prime after 248?
251.
What is the prime number before 248?
241.
What are the factors of 248?
1, 2, 4, 8, 31, 62, 124, 248.