Question

explain divisibility rule of 3 and 7​

Answer 1

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Adding the last digit to 3 times the rest gives a multiple of 7. Adding 3 times the last digit to 2 times the rest gives a multiple of 7. If the hundreds digit is even, the number formed by the last two digits must be divisible by 8.$<marquee>★!Thankyou!★</marquee>$||✪✪

Answer 2

Answer:

number is divisible by 3 if the sum of its digits is divisible by 3. 375, for instance, is divisible by 3 since sum of its digits (3+7+5) is 15. And 15 is divisible by 3. number.