Q: Is 355,665 a Prime Number?
A: No, 355,665 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 355665 can be evenly divided by 1 3 5 15 131 181 393 543 655 905 1,965 2,715 23,711 71,133 118,555 and 355,665, with no remainder.
Since 355,665 cannot be divided by just 1 and 355,665, it is not a prime number.