Q: Is 4,209,642 a Prime Number?
A: No, 4,209,642 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 4209642 can be evenly divided by 1 2 3 6 9 17 18 34 51 102 153 306 13,757 27,514 41,271 82,542 123,813 233,869 247,626 467,738 701,607 1,403,214 2,104,821 and 4,209,642, with no remainder.
Since 4,209,642 cannot be divided by just 1 and 4,209,642, it is not a prime number.