Q: Is 851,519 a Prime Number?
A: Yes, 851,519 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 851519 can be evenly divided by 1 and 851,519, with no remainder.
Since 851,519 can be divided by just 1 and 851,519, it is a prime number.