Q: Is 126,321 a Prime Number?
A: No, 126,321 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 126321 can be evenly divided by 1 3 13 39 41 79 123 237 533 1,027 1,599 3,081 3,239 9,717 42,107 and 126,321, with no remainder.
Since 126,321 cannot be divided by just 1 and 126,321, it is not a prime number.