Q: Is 221,142 a Prime Number?
A: No, 221,142 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 221142 can be evenly divided by 1 2 3 6 36,857 73,714 110,571 and 221,142, with no remainder.
Since 221,142 cannot be divided by just 1 and 221,142, it is not a prime number.