No, 141 is not a prime number. It is a composite number: its digits add up to 6, which is divisible by 3, so 141 is divisible by 3.
141 has divisors other than 1 and itself. The smallest is 3: 141 ÷ 3 = 47.
Prime factorization: 141 = 3 × 47.
| Number | Prime? |
|---|---|
| 137 | Yes |
| 138 | No, 2 × 3 × 23 |
| 139 | Yes |
| 140 | No, 2 × 2 × 5 × 7 |
| 142 | No, 2 × 71 |
| 143 | No, 11 × 13 |
| 144 | No, 2 × 2 × 2 × 2 × 3 × 3 |
| 145 | No, 5 × 29 |
More about 141: factors of 141 · 141 squared · square root of 141 · 141 in binary · 141 in Roman numerals.
Another number? Use the prime number checker for any value, or see the list of prime numbers.