Q: Is 315,500 a Prime Number?
A: No, 315,500 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 315500 can be evenly divided by 1 2 4 5 10 20 25 50 100 125 250 500 631 1,262 2,524 3,155 6,310 12,620 15,775 31,550 63,100 78,875 157,750 and 315,500, with no remainder.
Since 315,500 cannot be divided by just 1 and 315,500, it is not a prime number.