No, 429 is not a prime number. It is a composite number: its digits add up to 15, which is divisible by 3, so 429 is divisible by 3.
429 has divisors other than 1 and itself. The smallest is 3: 429 ÷ 3 = 143.
Prime factorization: 429 = 3 × 11 × 13.
| Number | Prime? |
|---|---|
| 425 | No, 5 × 5 × 17 |
| 426 | No, 2 × 3 × 71 |
| 427 | No, 7 × 61 |
| 428 | No, 2 × 2 × 107 |
| 430 | No, 2 × 5 × 43 |
| 431 | Yes |
| 432 | No, 2 × 2 × 2 × 2 × 3 × 3 × 3 |
| 433 | Yes |
Another number? Use the prime number checker for any value, or see the list of prime numbers.