Q: Is 40,428 a Prime Number?
A: No, 40,428 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 40428 can be evenly divided by 1 2 3 4 6 9 12 18 36 1,123 2,246 3,369 4,492 6,738 10,107 13,476 20,214 and 40,428, with no remainder.
Since 40,428 cannot be divided by just 1 and 40,428, it is not a prime number.