Q: Is 77,821 a Prime Number?
A: No, 77,821 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 77821 can be evenly divided by 1 59 1,319 and 77,821, with no remainder.
Since 77,821 cannot be divided by just 1 and 77,821, it is not a prime number.