Q: Is 355,561 a Prime Number?
A: No, 355,561 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 355561 can be evenly divided by 1 107 3,323 and 355,561, with no remainder.
Since 355,561 cannot be divided by just 1 and 355,561, it is not a prime number.