Q: Is 328,428 a Prime Number?
A: No, 328,428 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 328428 can be evenly divided by 1 2 3 4 6 9 12 18 27 36 54 108 3,041 6,082 9,123 12,164 18,246 27,369 36,492 54,738 82,107 109,476 164,214 and 328,428, with no remainder.
Since 328,428 cannot be divided by just 1 and 328,428, it is not a prime number.