Q: Is 342,489 a Prime Number?
A: No, 342,489 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 342489 can be evenly divided by 1 3 7 21 47 141 329 347 987 1,041 2,429 7,287 16,309 48,927 114,163 and 342,489, with no remainder.
Since 342,489 cannot be divided by just 1 and 342,489, it is not a prime number.