hcf of 90, 108 and 126
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Answer:
HCF of 90, 108 and 126 is 18.
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Given : 90, 108 and 126
To Find : HCF
Solution:
HCF Highest common factor of given numbers is the largest factors which divides all the given numbers perfectly.
HCF = product of common factors of least power
90, 108 and 126
90 = 2 * 3 * 3 * 5 = 2¹ * 3² * 5¹
108 = 2 * 2 * 3 * 3 * 3 = 2² * 3³
126 = 2 * 3 * 3 * 7 = 2¹ * 3² * 7¹
HCF = 2¹ * 3² = 2 * 9 = 18
Hence HCF of 90, 108 and 126 is 18
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