No, 148 is not a prime number. It is a composite number: it is even, so it is divisible by 2.
148 has divisors other than 1 and itself. The smallest is 2: 148 ÷ 2 = 74.
Prime factorization: 148 = 2 × 2 × 37 = 2² × 37.
| Number | Prime? |
|---|---|
| 144 | No, 2 × 2 × 2 × 2 × 3 × 3 |
| 145 | No, 5 × 29 |
| 146 | No, 2 × 73 |
| 147 | No, 3 × 7 × 7 |
| 149 | Yes |
| 150 | No, 2 × 3 × 5 × 5 |
| 151 | Yes |
| 152 | No, 2 × 2 × 2 × 19 |
More about 148: factors of 148 · 148 squared · square root of 148 · 148 in binary · 148 in Roman numerals.
Another number? Use the prime number checker for any value, or see the list of prime numbers.