Question

test of divisibility of the following number by 7, 826 ​

Answer 1

the divisibility rule of 7 is that

= double the last digit and subtract it from remaining and divide it by 7

so 826

6*2 =12

= 82-12

= 70

= 70/7

=7

yes

therefore this is divisible by 7

$...$

Answer 2

Answer:

yes 826 is divisible by 7.

to check that a given number is divisible by 7 or not , then just double up the last digit and subtract from the remaining digits., if the result is divisible by 7 then ,the whole number is divisible by 7.

Step-by-step explanation:

for example in 826,

last digit is 6

after doubling it , we get 6 ×2 = 12

subtract it from remaining digits

that is 82 - 12 = 70

, now, 70 is exactly divisible by 7 so, the number 826 is divisible by 7.