No, 49 is not a prime number. It is a composite number: 49 = 7 × 7.
49 has divisors other than 1 and itself. The smallest is 7: 49 ÷ 7 = 7.
Prime factorization: 49 = 7 × 7 = 7².
| Number | Prime? |
|---|---|
| 45 | No, 3 × 3 × 5 |
| 46 | No, 2 × 23 |
| 47 | Yes |
| 48 | No, 2 × 2 × 2 × 2 × 3 |
| 50 | No, 2 × 5 × 5 |
| 51 | No, 3 × 17 |
| 52 | No, 2 × 2 × 13 |
| 53 | Yes |
More about 49: factors of 49 · 49 squared · square root of 49 · 49 in binary · 49 in Roman numerals.
Another number? Use the prime number checker for any value, or see the list of prime numbers.