Q: Is 1,604,490 a Prime Number?
A: No, 1,604,490 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 1604490 can be evenly divided by 1 2 3 5 6 10 15 30 79 158 237 395 474 677 790 1,185 1,354 2,031 2,370 3,385 4,062 6,770 10,155 20,310 53,483 106,966 160,449 267,415 320,898 534,830 802,245 and 1,604,490, with no remainder.
Since 1,604,490 cannot be divided by just 1 and 1,604,490, it is not a prime number.