Q: Is 342,387 a Prime Number?
A: No, 342,387 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 342387 can be evenly divided by 1 3 9 27 81 243 1,409 4,227 12,681 38,043 114,129 and 342,387, with no remainder.
Since 342,387 cannot be divided by just 1 and 342,387, it is not a prime number.