Q: Is 3,987,654 a Prime Number?
A: No, 3,987,654 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 3987654 can be evenly divided by 1 2 3 6 11 22 31 33 62 66 93 186 341 682 1,023 1,949 2,046 3,898 5,847 11,694 21,439 42,878 60,419 64,317 120,838 128,634 181,257 362,514 664,609 1,329,218 1,993,827 and 3,987,654, with no remainder.
Since 3,987,654 cannot be divided by just 1 and 3,987,654, it is not a prime number.