Find the HCF of 72,126, and 90 using prime factorisations method

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Find the HCF of 72,126, and 90 using prime factorisations method

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Answer:18

Step-by-step explanation:72=2×2×2×3×3=2³×3²126=2×3×3×7=2×3²×790=2×3×3×5=2×3²×5Hence,HCFof72,126,90=2×3²=2×9=18