Question

divisiblity rule for 7 and find the divisiblity rule of 49

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Answer 1

Answer:

Since 49 is divisible by 7. Hence, 595is also divisible by 7. Since 63 is divisible by 7. ... Consider the following numbers which are not divisible by 7, using the rules of divisibility by 7: 167, 233, 297, 305,317.

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Answer 2

Answer:

the difference between twice the unit digit of the given number and the remaining part of the given number should be a multiple of 7 or it should be equal to 0”. For example, 798 is divisible by 7.

Adding 5 times the last digit to the rest gives a multiple of 7. It works because 49 is divisible by 7.

Step-by-step explanation: