Q: Is 491,512 a Prime Number?
A: No, 491,512 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 491512 can be evenly divided by 1 2 4 7 8 14 28 56 67 131 134 262 268 469 524 536 917 938 1,048 1,834 1,876 3,668 3,752 7,336 8,777 17,554 35,108 61,439 70,216 122,878 245,756 and 491,512, with no remainder.
Since 491,512 cannot be divided by just 1 and 491,512, it is not a prime number.