Q: Is 21,061 a Prime Number?
A: Yes, 21,061 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 21061 can be evenly divided by 1 and 21,061, with no remainder.
Since 21,061 can be divided by just 1 and 21,061, it is a prime number.