Q: Is 129,423 a Prime Number?
A: No, 129,423 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 129423 can be evenly divided by 1 3 7 21 6,163 18,489 43,141 and 129,423, with no remainder.
Since 129,423 cannot be divided by just 1 and 129,423, it is not a prime number.