Q: Is 422,518 a Prime Number?
A: No, 422,518 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 422518 can be evenly divided by 1 2 17 34 43 86 289 578 731 1,462 4,913 9,826 12,427 24,854 211,259 and 422,518, with no remainder.
Since 422,518 cannot be divided by just 1 and 422,518, it is not a prime number.