Q: Is 8,420,874 a Prime Number?
A: No, 8,420,874 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 8420874 can be evenly divided by 1 2 3 6 7 11 14 21 22 33 42 66 77 121 154 231 242 363 462 726 847 1,657 1,694 2,541 3,314 4,971 5,082 9,942 11,599 18,227 23,198 34,797 36,454 54,681 69,594 109,362 127,589 200,497 255,178 382,767 400,994 601,491 765,534 1,202,982 1,403,479 2,806,958 4,210,437 and 8,420,874, with no remainder.
Since 8,420,874 cannot be divided by just 1 and 8,420,874, it is not a prime number.