Q: Is 20,172 a Prime Number?
A: No, 20,172 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 20172 can be evenly divided by 1 2 3 4 6 12 41 82 123 164 246 492 1,681 3,362 5,043 6,724 10,086 and 20,172, with no remainder.
Since 20,172 cannot be divided by just 1 and 20,172, it is not a prime number.