Q: Is 1,587,804 a Prime Number?
A: No, 1,587,804 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 1587804 can be evenly divided by 1 2 3 4 6 12 307 431 614 862 921 1,228 1,293 1,724 1,842 2,586 3,684 5,172 132,317 264,634 396,951 529,268 793,902 and 1,587,804, with no remainder.
Since 1,587,804 cannot be divided by just 1 and 1,587,804, it is not a prime number.