Q: Is 1,211,427 a Prime Number?
A: No, 1,211,427 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 1211427 can be evenly divided by 1 3 7 9 21 41 49 63 67 123 147 201 287 369 441 469 603 861 1,407 2,009 2,583 2,747 3,283 4,221 6,027 8,241 9,849 18,081 19,229 24,723 29,547 57,687 134,603 173,061 403,809 and 1,211,427, with no remainder.
Since 1,211,427 cannot be divided by just 1 and 1,211,427, it is not a prime number.