Q: Is 815,204 a Prime Number?
A: No, 815,204 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 815204 can be evenly divided by 1 2 4 13 26 52 61 122 244 257 514 793 1,028 1,586 3,172 3,341 6,682 13,364 15,677 31,354 62,708 203,801 407,602 and 815,204, with no remainder.
Since 815,204 cannot be divided by just 1 and 815,204, it is not a prime number.