Question

find the h.c.f and L.c.m 117,221 slove it

Answer 1

To get the Least Common Multiple (LCM) of 117 and 221 we need to factor each value first and then we choose all the factors which appear in any column and multiply them: 

117:   3313 221:     1317LCM:   331317

The Least Common Multiple (LCM) is:   3 x 3 x 13 x 17 = 19

Answer 2

Hcf= 3 117,221
3 39,77
13,29
=9

Lcm= 3 117,221
3 39,77
13 13,29
29 1,29
1,1
= 3x3x13x29
9x13x29
262x13
3406