Q: Is 3,421,664 a Prime Number?
A: No, 3,421,664 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 3421664 can be evenly divided by 1 2 4 8 16 23 32 46 92 184 368 736 4,649 9,298 18,596 37,192 74,384 106,927 148,768 213,854 427,708 855,416 1,710,832 and 3,421,664, with no remainder.
Since 3,421,664 cannot be divided by just 1 and 3,421,664, it is not a prime number.