Q: Is 21,354 a Prime Number?
A: No, 21,354 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 21354 can be evenly divided by 1 2 3 6 3,559 7,118 10,677 and 21,354, with no remainder.
Since 21,354 cannot be divided by just 1 and 21,354, it is not a prime number.