Question

What is the Divisibility rule of 27 & 81 .....??? Anyone witty here to give the crct Answer..!! Only Crct Ans would be mark as brainliest​

Answer 1

Answer:

27 = Let a be the hundreds digit of n and let b be the two-digit number formed by the remaining two digits (i.e., the tens digit and the units digit) of n.... Then n is divisible by 27 if and only if n1 is divisible by 27.

81 = For those who remember the rules that a number is divisible by 3 and 9 if and only if the sum of its digits is divisible by 3 or 9, respectively, it's tempting to assume that the same applies to 81. That is a number is divisible by 81 the sum of its digits is divisible by 81