Nestor R. answered • 08/07/19
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Mathematically-oriented professional with many years of experience
98 and 42 are both even, so we can divide by 2
98/2 = 49 and 42/2 = 21.
49 and 21 can both be divided by 7
49/7 = 7 and 21/7 = 3
There are no other common factors > 1
Because both 98 and 42 are divisible by 2 and 7, their highest common factor is 2x7 = 14.
14x7=98 and 14x3 = 42.
