Q: Is 4,891,821 a Prime Number?
A: No, 4,891,821 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 4891821 can be evenly divided by 1 3 11 33 271 547 813 1,641 2,981 6,017 8,943 18,051 148,237 444,711 1,630,607 and 4,891,821, with no remainder.
Since 4,891,821 cannot be divided by just 1 and 4,891,821, it is not a prime number.