Q: Is 1,604,608 a Prime Number?
A: No, 1,604,608 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 1604608 can be evenly divided by 1 2 4 8 16 32 64 128 256 512 1,024 1,567 3,134 6,268 12,536 25,072 50,144 100,288 200,576 401,152 802,304 and 1,604,608, with no remainder.
Since 1,604,608 cannot be divided by just 1 and 1,604,608, it is not a prime number.