A new discovery in the world of mathematics is detonated by a 12-year-old Nigerian boy.

Cheika, a Nigerian boy, discovered a way to figure out how to divide the number by 7, after studying a book about the ability to divide numbers by numbers 2, 4, 5, and…

And the way he invented it is as follows: Let’s say we want to know if the number 182 is divided by 7?

Calculate the following number:

18+2×5=18+10=28

28 is a number that can be divided by 7, so the first number 182 is also dividable by 7.

Note that he takes the number of units solo, multiplies it at 5 and then adds the output to the rest of the number without the number of its units.

Another example: Is the number 1687 dividable by 7?

Following the previous method, we add the number of units multiplied by 5 to the rest of the number as follows:

168+7×5=168+35=203

But number 203, we also don’t know whether it’s dividable or not.

So we repeat the same way on 203:

20+3×5=20+15=35

And 35 numbers can be divided by 7, so 203 is divided by 7, of which the number 1687 is also divided by 7.

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