Is 242 a prime number?
No, 242 is not a prime number. It is divisible by 2: 242 = 2 × 121.
Is 242 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 √242 ≈ 15.56. If none of them divides 242, it is prime.
- 3
2 divides 242 exactly, so it is not prime. Its prime factorisation is
LaTeX source of the formulas on this page
\[ 242 = 2 \times 11^{2} \]Testing 242 by the primes up to its square root
| Prime | Division | Result |
|---|---|---|
| 2 | 242 ÷ 2 | divides exactly (121) |
| 3 | 242 ÷ 3 | leaves 2 |
| 5 | 242 ÷ 5 | leaves 2 |
| 7 | 242 ÷ 7 | leaves 4 |
| 11 | 242 ÷ 11 | divides exactly (22) |
| 13 | 242 ÷ 13 | leaves 8 |
Questions
Is 242 a prime number?
No, 242 is not a prime number. It is divisible by 2: 242 = 2 × 121.
What is the next prime after 242?
251.
What is the prime number before 242?
241.
What are the factors of 242?
1, 2, 11, 22, 121, 242.