Is 391 divisible by 3? In other words, if you divide 391 by 3, will you get a whole number with no remainder?
Of course, you could use a calculator to find out if 391 is divisible by 3, but what fun would that be?
To find out if 391 is divisible by 3, we will add up the numbers that make 391 as follows: 3 + 9 + 1 = 13
We know that if the sum of the numbers that make up 391 is divisible by 3, then 391 is divisible by 3.
Since the sum of the digits in 391 is not divisible by 3, 391 is also NOT divisible by 3. Thus, the answer to the question "Is 391 divisible by 3?" is as follows:
No
Note: If you divide 391 by 3, you get 130.33 which is not a whole number.
Divisible by 3?
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