No, 121 is not a prime number. It is a composite number: 121 = 11 × 11.
121 has divisors other than 1 and itself. The smallest is 11: 121 ÷ 11 = 11.
Prime factorization: 121 = 11 × 11 = 11².
| Number | Prime? |
|---|---|
| 117 | No, 3 × 3 × 13 |
| 118 | No, 2 × 59 |
| 119 | No, 7 × 17 |
| 120 | No, 2 × 2 × 2 × 3 × 5 |
| 122 | No, 2 × 61 |
| 123 | No, 3 × 41 |
| 124 | No, 2 × 2 × 31 |
| 125 | No, 5 × 5 × 5 |
More about 121: factors of 121 · 121 squared · square root of 121 · 121 in binary · 121 in Roman numerals.
Another number? Use the prime number checker for any value, or see the list of prime numbers.