Q: Is 1,315,509 a Prime Number?
A: No, 1,315,509 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 1315509 can be evenly divided by 1 3 13 39 89 267 379 1,137 1,157 3,471 4,927 14,781 33,731 101,193 438,503 and 1,315,509, with no remainder.
Since 1,315,509 cannot be divided by just 1 and 1,315,509, it is not a prime number.