Q: Is 21,698 a Prime Number?
A: No, 21,698 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 21698 can be evenly divided by 1 2 19 38 571 1,142 10,849 and 21,698, with no remainder.
Since 21,698 cannot be divided by just 1 and 21,698, it is not a prime number.