12-year-old Nigerian wins special award for discovering a new Mathematics formula

A 12-year-old Nigerian boy, Chika Ofili has been lauded and given the TruLittle Hero award for discovering a new way to divide in mathematics.

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Chika’s mathematic’s teacher, Miss Mary Ellis who is also the head of the mathematics department at Westminster Under School said the 12-year-old discovered the new formula while solving a holiday assignment.

The book had several divisibility tests which are used to quickly work out whether a number is exactly divisible by either 2, 3, 4, 5, 6, 7, 8 or 9 before you start dividing, but had no easy or memorable test listed for checking divisibility by 7.

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Chika however solved this and also had an algebraic proof to back it up. His new formula involves taking the last digit of any whole number, multiplying it by 5 and then adding it to the remaining part of the number to get a new number. If this new number is divisible by 7, then the original number is divisible by 7

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