Q: Is 10,621 a Prime Number?
A: No, 10,621 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 10621 can be evenly divided by 1 13 19 43 247 559 817 and 10,621, with no remainder.
Since 10,621 cannot be divided by just 1 and 10,621, it is not a prime number.