Q: Is 1,601,616 a Prime Number?
A: No, 1,601,616 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 1601616 can be evenly divided by 1 2 3 4 6 8 12 16 24 48 61 122 183 244 366 488 547 732 976 1,094 1,464 1,641 2,188 2,928 3,282 4,376 6,564 8,752 13,128 26,256 33,367 66,734 100,101 133,468 200,202 266,936 400,404 533,872 800,808 and 1,601,616, with no remainder.
Since 1,601,616 cannot be divided by just 1 and 1,601,616, it is not a prime number.