Q: Is 563,145 a Prime Number?
A: No, 563,145 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 563145 can be evenly divided by 1 3 5 11 15 33 55 165 3,413 10,239 17,065 37,543 51,195 112,629 187,715 and 563,145, with no remainder.
Since 563,145 cannot be divided by just 1 and 563,145, it is not a prime number.