Q: Is 21,342 a Prime Number?
A: No, 21,342 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 21342 can be evenly divided by 1 2 3 6 3,557 7,114 10,671 and 21,342, with no remainder.
Since 21,342 cannot be divided by just 1 and 21,342, it is not a prime number.