Q: Is 491,712 a Prime Number?
A: No, 491,712 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 491712 can be evenly divided by 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 156 192 197 208 312 394 416 591 624 788 832 1,182 1,248 1,576 2,364 2,496 2,561 3,152 4,728 5,122 6,304 7,683 9,456 10,244 12,608 15,366 18,912 20,488 30,732 37,824 40,976 61,464 81,952 122,928 163,904 245,856 and 491,712, with no remainder.
Since 491,712 cannot be divided by just 1 and 491,712, it is not a prime number.