Is 1280 divisible by 3? In other words, if you divide 1280 by 3, will you get a whole number with no remainder?
Of course, you could use a calculator to find out if 1280 is divisible by 3, but what fun would that be?
To find out if 1280 is divisible by 3, we will add up the numbers that make 1280 as follows: 1 + 2 + 8 + 0 = 11
We know that if the sum of the numbers that make up 1280 is divisible by 3, then 1280 is divisible by 3.
Since the sum of the digits in 1280 is not divisible by 3, 1280 is also NOT divisible by 3. Thus, the answer to the question "Is 1280 divisible by 3?" is as follows:
No
Note: If you divide 1280 by 3, you get 426.67 which is not a whole number.
Divisible by 3?
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