Q: Is 1,333,664 a Prime Number?
A: No, 1,333,664 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 1333664 can be evenly divided by 1 2 4 8 16 32 71 142 284 568 587 1,136 1,174 2,272 2,348 4,696 9,392 18,784 41,677 83,354 166,708 333,416 666,832 and 1,333,664, with no remainder.
Since 1,333,664 cannot be divided by just 1 and 1,333,664, it is not a prime number.