What is HCF of 36, 72 and 126?
18
The given numbers are 36, 72, and 126.
⇒ 36 = 22 × 32
⇒ 72 = 23 × 32
⇒ 126 = 2 × 32 × 7
∴ The LCM of 36, 72, and 126 = 2 × 32 = 18
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