Question

Using the common factor method, find the H.C.F. of
(iii) $27\text{and}75$

Answer 1

(iii) Factor of a number: The number by which the given number can be divided completely.
Factors of $27=1,3,9,27$
Factors of $75=1,3,5,15,25,75$
$\therefore$ Common factors between $27$ and $75=1,3$
Hence, H.C.F. of 27 and 75 is 3.