Is 6721 divisible by 3? In other words, if you divide 6721 by 3, will you get a whole number with no remainder?
Of course, you could use a calculator to find out if 6721 is divisible by 3, but what fun would that be?
To find out if 6721 is divisible by 3, we will add up the numbers that make 6721 as follows: 6 + 7 + 2 + 1 = 16
We know that if the sum of the numbers that make up 6721 is divisible by 3, then 6721 is divisible by 3.
Since the sum of the digits in 6721 is not divisible by 3, 6721 is also NOT divisible by 3. Thus, the answer to the question "Is 6721 divisible by 3?" is as follows:
No
Note: If you divide 6721 by 3, you get 2240.33 which is not a whole number.
Divisible by 3?
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