Q: Is 135,621 a Prime Number?
A: No, 135,621 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 135621 can be evenly divided by 1 3 9 27 5,023 15,069 45,207 and 135,621, with no remainder.
Since 135,621 cannot be divided by just 1 and 135,621, it is not a prime number.