Q: Is 21,010 a Prime Number?
A: No, 21,010 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 21010 can be evenly divided by 1 2 5 10 11 22 55 110 191 382 955 1,910 2,101 4,202 10,505 and 21,010, with no remainder.
Since 21,010 cannot be divided by just 1 and 21,010, it is not a prime number.