Question

A number is divisible by if it is divisible by both 7 and 8.​

Answer 1

Answer:

What is the divisibility rule for 7 and 8?

In Vedic Mathematics Divisibilty of 8 can be found by Vilokanam Sutra

(Meaning: By mere observation )

Divisibility by 8 :

If the last three digits of the number are divisible by 8.

Ex: 3652736 is divisible by 8 because last three digits (736) is divisible by 8.

Divisibility by 7 can be obtained by 2 methods (Positive Osculator and Negative Osculator)

Divisibility by 7: Multiply the last digit by 5 and add th(e product to the remaining truncated number. Continue doing these steps until you reach a 2 digit number.

If the result is divisible by 7, we say that the original dividend is divisible by 7.

or

Divisibility by 7: Multiply the last digit by 2 and subtract the product to the remaining truncated number. Continue doing these steps until you reach a 2 digit number.

If the result is divisible by 7, we say that the original dividend is divisible by 7.

Let us see with the help of an Example

Step-by-step explanation:

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