Question

please explain rule for 7 divisibility with aby 4 digit number

Answer 1

Hello!!!


the disability of rule of 7 is:-



if the sum of all digit is divisible by 7.


so we can see that it is divisible by 7.



same case apply in 4 digit number also.



hope it helps!!!!



thanks

Answer 2

hi!

if twice of the ones digit is divisible by 7 then the number is also divisible by 7 and if number formed by ones and tens digit is divisible by 4 then the number is also divisible by 4