Q: Is 217,145 a Prime Number?
A: No, 217,145 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 217145 can be evenly divided by 1 5 137 317 685 1,585 43,429 and 217,145, with no remainder.
Since 217,145 cannot be divided by just 1 and 217,145, it is not a prime number.