Q: Is 802,578 a Prime Number?
A: No, 802,578 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 802578 can be evenly divided by 1 2 3 6 7 14 21 42 97 194 197 291 394 582 591 679 1,182 1,358 1,379 2,037 2,758 4,074 4,137 8,274 19,109 38,218 57,327 114,654 133,763 267,526 401,289 and 802,578, with no remainder.
Since 802,578 cannot be divided by just 1 and 802,578, it is not a prime number.