Question

how many two digits number are there having 6 factors ​

Answer 1

Answer:

15, i believe, is the answer. In general, a² * b will have (2+1)(1+1)= 3*2 =6 factors (three choices for a power of a and two choices for b in a particular factor). Also,this limits the number of factors that we can have in such a number.

Answer 2

Answer:

15 is the correct answer

by divisible rule six is a multiple of 2 and 3. hence it has two combination of test that is test for 2 and test for 3 hence total number of two digit number that are having 6 as factor are 15