Q: Is 221,985 a Prime Number?
A: No, 221,985 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 221985 can be evenly divided by 1 3 5 9 15 45 4,933 14,799 24,665 44,397 73,995 and 221,985, with no remainder.
Since 221,985 cannot be divided by just 1 and 221,985, it is not a prime number.