Q: Is 221,425 a Prime Number?
A: No, 221,425 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 221425 can be evenly divided by 1 5 17 25 85 425 521 2,605 8,857 13,025 44,285 and 221,425, with no remainder.
Since 221,425 cannot be divided by just 1 and 221,425, it is not a prime number.