Question

The HCF and LCM of two number are 9and 819 respectively. one of the numbers is a two-dight number.find The number.

Answer 1

since it is not clear from the question, let me assume that there are two numbers A and B

Since HCF of A and B is 9:

A =m⋅9 and B =n⋅9

Since LCM of A and B is 819

A x B =k⋅7⋅9⋅13

A and B will have 9 as a factor and either of A or B will have 7 or 13 or both as a factor. Hence, there are 4 combinations of (A, B)

(9,91),(9,819),(91,9),(819,9)

Answer 2

Answer:

The product of the two number = HCF ×LCM

9 × 819 = 7371

The number is odd because of in unit is 1

you can't do it with 2 or 5

so, you any staring, ending or in middle 9

you should take one digit number and two digit number also