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28-04-2020
Mathematics

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Find the greatest common factor of 63 and 42

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28-04-2020

Greatest common factor (GCF) of 42 and 63 is 21. We will now calculate the prime factors of 42 and 63, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42 and 63.

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Sikandardar Sikandardar

28-04-2020

Answer:

Step-by-step explanation:

42=2×3×7

63=3×3×7

HCF=3×7=21

21 is the answer

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