Is 78 divisible by 3? In other words, if you divide 78 by 3, will you get a whole number with no remainder?
Of course, you could use a calculator to find out if 78 is divisible by 3, but what fun would that be?
To find out if 78 is divisible by 3, we will add up the numbers that make 78 as follows: 7 + 8 = 15
We know that if the sum of the numbers that make up 78 is divisible by 3, then 78 is divisible by 3.
Since the sum of the digits in 78 is divisible by 3, 78 is also divisible by 3. Thus, the answer to the question "Is 78 divisible by 3?" is as follows:
Yes
Note: If you divide 78 by 3, you get 26 which is a whole number.
Divisible by 3?
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