Q: Is 216,851 a Prime Number?
A: Yes, 216,851 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 216851 can be evenly divided by 1 and 216,851, with no remainder.
Since 216,851 can be divided by just 1 and 216,851, it is a prime number.