Q. 3 C5.0( 1 Vote )

Find g. c. d. and l.c.m.. :

49, 42, 91

Answer :

49 = 7 × 7

42 = 2 × 21 = 2 × 3 × 7


91 = 7 × 13


Therefore, g. c. d(49, 42, 91) = 7


l.c.m.(49, 42, 91) = 72 × 2 × 3 × 13


= 49 × 78 = 3822


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