Q: Is 243,195 a Prime Number?
A: No, 243,195 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 243195 can be evenly divided by 1 3 5 15 31 93 155 465 523 1,569 2,615 7,845 16,213 48,639 81,065 and 243,195, with no remainder.
Since 243,195 cannot be divided by just 1 and 243,195, it is not a prime number.