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Is 821 Divisible By 7?




Here we will show you how to find out if 821 is divisible by 7.

If you have access to a calculator, the easiest way to figure out if 821 is divisible by 7 may be to simply enter 821/7 into the calculator. If the quotient is an integer, then 821 is divisible by 7.

However, you can also determine if 821 is divisible by 7 using an alternate method.

Simply multiply the last digit by 2 and then subtract the product from the remaining digits.

If that difference is divisible by 7, then 821 is divisible by 7.

The last digit in 821 is 1 and the remaining digits are 82. Thus, the math to determine if 821 is divisible by 7 using our alternate method is:

82 - (1 x 2) = 80

Since 80 is not divisible by 7, 821 is also not divisible by 7.

Therefore, the answer to "Is 821 Divisible By 7?" is no.
(821 / 7 = 117.286)




Divisible By 7
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Is 822 Divisible by 7?
Here is our next problem that we explained and solved.



Terminology
Words we used to explain if 821 is divisible by 7 that you may find useful:

Quotient: The answer you get when you divide two numbers.

Integer: A whole number.

Product: The answer you get when you multiply two numbers.

Difference: The answer you get when you subtract one number from another.


 


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