Q: Is 20,426 a Prime Number?
A: No, 20,426 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 20426 can be evenly divided by 1 2 7 14 1,459 2,918 10,213 and 20,426, with no remainder.
Since 20,426 cannot be divided by just 1 and 20,426, it is not a prime number.