No, 144 is not a prime number. It is a composite number: it is even, so it is divisible by 2.
144 has divisors other than 1 and itself. The smallest is 2: 144 ÷ 2 = 72.
Prime factorization: 144 = 2 × 2 × 2 × 2 × 3 × 3 = 2⁴ × 3².
| Number | Prime? |
|---|---|
| 140 | No, 2 × 2 × 5 × 7 |
| 141 | No, 3 × 47 |
| 142 | No, 2 × 71 |
| 143 | No, 11 × 13 |
| 145 | No, 5 × 29 |
| 146 | No, 2 × 73 |
| 147 | No, 3 × 7 × 7 |
| 148 | No, 2 × 2 × 37 |
More about 144: factors of 144 · 144 squared · square root of 144 · 144 in binary · 144 in Roman numerals.
Another number? Use the prime number checker for any value, or see the list of prime numbers.