Q: Is 812,500 a Prime Number?
A: No, 812,500 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 812500 can be evenly divided by 1 2 4 5 10 13 20 25 26 50 52 65 100 125 130 250 260 325 500 625 650 1,250 1,300 1,625 2,500 3,125 3,250 6,250 6,500 8,125 12,500 15,625 16,250 31,250 32,500 40,625 62,500 81,250 162,500 203,125 406,250 and 812,500, with no remainder.
Since 812,500 cannot be divided by just 1 and 812,500, it is not a prime number.