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Check the divisibility of 7 for the following number:12345667890.
Given :
The given number is 12345667890.
To do :
We have to check the divisibility rule of 7 for the given number.
Solution :
To check divisibility by 7, as the initial step, we calculate $12345667890-2(0)=1234566789$.
However, this number is still a little too big for us to tell whether it's divisible by 7. In such cases, we keep applying the divisibility rule again and again until we have a small enough number to work with:
$123456678−2(9)=123456660$
$12345666−2(0)=12345666$
$1234566−2(6)=1234554$
$123455−2(4)=123447$
$12344−2(7)=12330$
$1233-2(0)=1233$
$123-2(3)=117$
117 is not divisible by 7.
Therefore, 12345667890 is not divisible by 7.
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