Q: Is 3,640,742 a Prime Number?
A: No, 3,640,742 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 3640742 can be evenly divided by 1 2 7 14 19 38 133 266 13,687 27,374 95,809 191,618 260,053 520,106 1,820,371 and 3,640,742, with no remainder.
Since 3,640,742 cannot be divided by just 1 and 3,640,742, it is not a prime number.