Q: Is 311,800 a Prime Number?
A: No, 311,800 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 311800 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 200 1,559 3,118 6,236 7,795 12,472 15,590 31,180 38,975 62,360 77,950 155,900 and 311,800, with no remainder.
Since 311,800 cannot be divided by just 1 and 311,800, it is not a prime number.