Is 40 divisible by 21?

40 is divisible by 21 if the quotient of 40 divided by 21 is an integer. The quotient is the result you get when you divide one number by another. Furthermore, an integer is a whole number (not a fractional number).

Thus, to find out if 40 is divisible by 21, we simply calculate 40 divided by 21 and then determine if the answer (quotient) is an integer (whole number) or a fractional number.

40 / 21 = 1.904761905

As you can see above, the quotient of 40 divided by 21 is 1.904761905 and 1.904761905 is a fractional number. Therefore, 40 is not divisible by 21.

Q: Is 40 divisible by 21?
A: No

So now you know that 40 is not divisible by 21. Do you want to know all the numbers that 40 is divisible by? No problem. 40 is divisible by 1, 2, 4, 5, 8, 10, 20, and 40.

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