Q: Is 345,557 a Prime Number?
A: No, 345,557 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 345557 can be evenly divided by 1 31 71 157 2,201 4,867 11,147 and 345,557, with no remainder.
Since 345,557 cannot be divided by just 1 and 345,557, it is not a prime number.