Find HCF by Prime
fectarisation method 20,16,40
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Answer:
GCF(16,40) = 8
We will now calculate the prime factors of 16 and 40, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16 and 40.
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prime factor for 20=2×2×5
prime factor for 16=2×2×2×2
prime factor for 40= 2×2×2×5
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