Q: Is 8,661,604 a Prime Number?
A: No, 8,661,604 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 8661604 can be evenly divided by 1 2 4 7 14 28 29 58 116 203 406 812 10,667 21,334 42,668 74,669 149,338 298,676 309,343 618,686 1,237,372 2,165,401 4,330,802 and 8,661,604, with no remainder.
Since 8,661,604 cannot be divided by just 1 and 8,661,604, it is not a prime number.