Q: Is 667,880 a Prime Number?
A: No, 667,880 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 667880 can be evenly divided by 1 2 4 5 8 10 20 40 59 118 236 283 295 472 566 590 1,132 1,180 1,415 2,264 2,360 2,830 5,660 11,320 16,697 33,394 66,788 83,485 133,576 166,970 333,940 and 667,880, with no remainder.
Since 667,880 cannot be divided by just 1 and 667,880, it is not a prime number.