Q: Is 355,220 a Prime Number?
A: No, 355,220 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 355220 can be evenly divided by 1 2 4 5 10 20 17,761 35,522 71,044 88,805 177,610 and 355,220, with no remainder.
Since 355,220 cannot be divided by just 1 and 355,220, it is not a prime number.