Q: Is 423,939 a Prime Number?
A: No, 423,939 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 423939 can be evenly divided by 1 3 251 563 753 1,689 141,313 and 423,939, with no remainder.
Since 423,939 cannot be divided by just 1 and 423,939, it is not a prime number.