Q: Is 20,427 a Prime Number?
A: No, 20,427 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 20427 can be evenly divided by 1 3 11 33 619 1,857 6,809 and 20,427, with no remainder.
Since 20,427 cannot be divided by just 1 and 20,427, it is not a prime number.