Math, asked by Sonam125, 1 year ago

find the HCF of 12, 15, and21

Answers

Answered by Anonymous
2
Heya,

Prime factorisation;

12 = 2×2×3
15 = 3×5
21 = 7×3

HCF is the no. that are common in all three,
So, HCF of 12, 15, and 21 = 3

HCF = 3. ..... Answer

Hope this helps.....:)

Sonam125: thank you
Anonymous: wlc dear.
Answered by common1
1
12,15,21

12= 2²×3
15=5×3
21=7×3
Hcf=3
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