Q: Is 317,985 a Prime Number?
A: No, 317,985 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 317985 can be evenly divided by 1 3 5 15 17 29 43 51 85 87 129 145 215 255 435 493 645 731 1,247 1,479 2,193 2,465 3,655 3,741 6,235 7,395 10,965 18,705 21,199 63,597 105,995 and 317,985, with no remainder.
Since 317,985 cannot be divided by just 1 and 317,985, it is not a prime number.