Q: Is 221,170 a Prime Number?
A: No, 221,170 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 221170 can be evenly divided by 1 2 5 10 17 34 85 170 1,301 2,602 6,505 13,010 22,117 44,234 110,585 and 221,170, with no remainder.
Since 221,170 cannot be divided by just 1 and 221,170, it is not a prime number.