Q: Is 355,605 a Prime Number?
A: No, 355,605 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 355605 can be evenly divided by 1 3 5 15 151 157 453 471 755 785 2,265 2,355 23,707 71,121 118,535 and 355,605, with no remainder.
Since 355,605 cannot be divided by just 1 and 355,605, it is not a prime number.