Q: Is 523,664 a Prime Number?
A: No, 523,664 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 523664 can be evenly divided by 1 2 4 8 16 23 46 92 184 368 1,423 2,846 5,692 11,384 22,768 32,729 65,458 130,916 261,832 and 523,664, with no remainder.
Since 523,664 cannot be divided by just 1 and 523,664, it is not a prime number.