Is 561 divisible by 3? In other words, if you divide 561 by 3, will you get a whole number with no remainder?
Of course, you could use a calculator to find out if 561 is divisible by 3, but what fun would that be?
To find out if 561 is divisible by 3, we will add up the numbers that make 561 as follows: 5 + 6 + 1 = 12
We know that if the sum of the numbers that make up 561 is divisible by 3, then 561 is divisible by 3.
Since the sum of the digits in 561 is divisible by 3, 561 is also divisible by 3. Thus, the answer to the question "Is 561 divisible by 3?" is as follows:
Yes
Note: If you divide 561 by 3, you get 187 which is a whole number.
Divisible by 3?
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