Q: Is 20,425 a Prime Number?
A: No, 20,425 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 20425 can be evenly divided by 1 5 19 25 43 95 215 475 817 1,075 4,085 and 20,425, with no remainder.
Since 20,425 cannot be divided by just 1 and 20,425, it is not a prime number.