No, 150 is not a prime number. It is a composite number: it is even, so it is divisible by 2.
150 has divisors other than 1 and itself. The smallest is 2: 150 ÷ 2 = 75.
Prime factorization: 150 = 2 × 3 × 5 × 5 = 2 × 3 × 5².
| Number | Prime? |
|---|---|
| 146 | No, 2 × 73 |
| 147 | No, 3 × 7 × 7 |
| 148 | No, 2 × 2 × 37 |
| 149 | Yes |
| 151 | Yes |
| 152 | No, 2 × 2 × 2 × 19 |
| 153 | No, 3 × 3 × 17 |
| 154 | No, 2 × 7 × 11 |
More about 150: factors of 150 · 150 squared · square root of 150 · 150 in binary · 150 in Roman numerals.
Another number? Use the prime number checker for any value, or see the list of prime numbers.