Q: Is 72,135 a Prime Number?
A: No, 72,135 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 72135 can be evenly divided by 1 3 5 7 9 15 21 35 45 63 105 229 315 687 1,145 1,603 2,061 3,435 4,809 8,015 10,305 14,427 24,045 and 72,135, with no remainder.
Since 72,135 cannot be divided by just 1 and 72,135, it is not a prime number.