Q: Is 800,478 a Prime Number?
A: No, 800,478 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 800478 can be evenly divided by 1 2 3 6 7 9 14 18 21 42 63 126 6,353 12,706 19,059 38,118 44,471 57,177 88,942 114,354 133,413 266,826 400,239 and 800,478, with no remainder.
Since 800,478 cannot be divided by just 1 and 800,478, it is not a prime number.