find HCF of 54,81,99 by using prime factor method
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Answered by
35
54 = 2 × 27 = 2 × 3 × 9 = 2 × 3 × 3 × 3.
81 = 3 × 27 = 3 × 3× 9 = 3 × 3 × 3 × 3.
99 = 11 × 9 = 11 × 3 × 3.
Factors common to all three numbers is 3 × 3.
Therefore, HCF = 3 × 3 = 9.
81 = 3 × 27 = 3 × 3× 9 = 3 × 3 × 3 × 3.
99 = 11 × 9 = 11 × 3 × 3.
Factors common to all three numbers is 3 × 3.
Therefore, HCF = 3 × 3 = 9.
Answered by
15
54=2*3*3*3, 81=3*3*3*3,99=3*3*11 hcf is9
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