Q: Is 423,156 a Prime Number?
A: No, 423,156 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 423156 can be evenly divided by 1 2 3 4 6 12 179 197 358 394 537 591 716 788 1,074 1,182 2,148 2,364 35,263 70,526 105,789 141,052 211,578 and 423,156, with no remainder.
Since 423,156 cannot be divided by just 1 and 423,156, it is not a prime number.