Q: Is 243,145 a Prime Number?
A: No, 243,145 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 243145 can be evenly divided by 1 5 7 35 6,947 34,735 48,629 and 243,145, with no remainder.
Since 243,145 cannot be divided by just 1 and 243,145, it is not a prime number.