Q: Is 491,216 a Prime Number?
A: No, 491,216 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 491216 can be evenly divided by 1 2 4 8 11 16 22 44 88 176 2,791 5,582 11,164 22,328 30,701 44,656 61,402 122,804 245,608 and 491,216, with no remainder.
Since 491,216 cannot be divided by just 1 and 491,216, it is not a prime number.