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vodka [1.7K]
3 years ago
7

(d)find the hcf of 21 and 84​

Mathematics
2 answers:
Oxana [17]3 years ago
7 0

I m not sure about my ans.

nata0808 [166]3 years ago
6 0

Step-by-step explanation:

21 = 3 \times 7 \\  \\ 84 = 2 \times 2 \times 3 \times 7 \\  \\ common \: factors \:  = 3  \: and \: 7 \\  \\  \therefore \: hcf \: of \: 21 \: and \: 84 = 3 \times 7 = 21

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