Q: Is 21,610 a Prime Number?
A: No, 21,610 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 21610 can be evenly divided by 1 2 5 10 2,161 4,322 10,805 and 21,610, with no remainder.
Since 21,610 cannot be divided by just 1 and 21,610, it is not a prime number.