Question

HCF 42 and 63 and 105

Answer 1

42 = 7x6
63=7x3x3
105= 3x5x7

So hcf {common factor ) = 7

Answer 2

$\huge\blue{ANSWER:-}$

➟42 7x6

➟63-7x3x3

➟105-3x5x7

∴So hcf fcommon factor) = 7