Q: Is 318,820 a Prime Number?
A: No, 318,820 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 318820 can be evenly divided by 1 2 4 5 10 19 20 38 76 95 190 380 839 1,678 3,356 4,195 8,390 15,941 16,780 31,882 63,764 79,705 159,410 and 318,820, with no remainder.
Since 318,820 cannot be divided by just 1 and 318,820, it is not a prime number.