Q: Is 40,638 a Prime Number?
A: No, 40,638 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 40638 can be evenly divided by 1 2 3 6 13 26 39 78 521 1,042 1,563 3,126 6,773 13,546 20,319 and 40,638, with no remainder.
Since 40,638 cannot be divided by just 1 and 40,638, it is not a prime number.