Q: Is 20,625 a Prime Number?
A: No, 20,625 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 20625 can be evenly divided by 1 3 5 11 15 25 33 55 75 125 165 275 375 625 825 1,375 1,875 4,125 6,875 and 20,625, with no remainder.
Since 20,625 cannot be divided by just 1 and 20,625, it is not a prime number.