a number is divisible by 7 if the difference between twice of the last digital and the number formed by other digits is eather 0 or multiple of 7 .Question is 45843
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Yes.... It is correct....
Explanation :-
You have to carry this process till the number come in 1 or 2 digits... That can be easily identified.
Step 1.)
Left number = 4584 and Last digit = 3
4584 - 6
= 4578
Step 2.)
Left number = 457 and Last digit = 8
= 457 - 16
= 441
Step 3.)
Left number = 44 and Last digit = 1
= 44 - 2
= 42
We know that 42 is divisible by 7, so 45843 is divisible by 7
Explanation :-
You have to carry this process till the number come in 1 or 2 digits... That can be easily identified.
Step 1.)
Left number = 4584 and Last digit = 3
4584 - 6
= 4578
Step 2.)
Left number = 457 and Last digit = 8
= 457 - 16
= 441
Step 3.)
Left number = 44 and Last digit = 1
= 44 - 2
= 42
We know that 42 is divisible by 7, so 45843 is divisible by 7
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