Is 155 divisible by 21?

155 is divisible by 21 if the quotient of 155 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 155 is divisible by 21, we simply calculate 155 divided by 21 and then determine if the answer (quotient) is an integer (whole number) or a fractional number.

155 / 21 = 7.380952381

As you can see above, the quotient of 155 divided by 21 is 7.380952381 and 7.380952381 is a fractional number. Therefore, 155 is not divisible by 21.

Q: Is 155 divisible by 21?
A: No

So now you know that 155 is not divisible by 21. Do you want to know all the numbers that 155 is divisible by? No problem. 155 is divisible by 1, 5, 31, and 155.

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