Q: Is 491,855 a Prime Number?
A: No, 491,855 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 491855 can be evenly divided by 1 5 7 13 23 35 47 65 91 115 161 235 299 329 455 611 805 1,081 1,495 1,645 2,093 3,055 4,277 5,405 7,567 10,465 14,053 21,385 37,835 70,265 98,371 and 491,855, with no remainder.
Since 491,855 cannot be divided by just 1 and 491,855, it is not a prime number.