Find the hcf of 112,168,420 by prime factorization method
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Answer:
HCF= 28
HCF of 112= 2*2*2*2*7
HCF of 168 = 2*2*2*3*7
HCF of 420= 2*2*3*5*7
therefore HCF = 2*2*7= 28
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