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Closurewhat I have learned: What are the rules to follow if a number is divisible by 42 What are the rules to follow if a number is divisible by 89 What are the rules to follow if a number is divisible by 112 What are the rules to follow if a number is divisible by 122 What are the rules to follow if a number is divisible by 72​

Closurewhat I Have Learned What Are The Rules To Follow If A Number Is Divisible By 42 What Are The Rules To Follow If A Number Is Divisible By 89 What Are The class=

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Answer:

Divisibility rules for numbers 1–30

Divisor Divisibility condition

7 Adding 5 times the last digit to the rest gives a multiple of 7. (Works because 49 is divisible by 7.)

Subtracting 2 times the last digit from the rest gives a multiple of 7. (Works because 21 is divisible by 7.)

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