Question
Find the highest common divisor of 1080, 2700, and
6480.Solution
ATQ, Prime Factorizations 1080 = 23 × 33 × 5 2700 = 22 × 33 × 52 6480 = 24 × 34 × 5
Take lowest powers of common primes
HCF = 22 × 33 × 5 = 4 × 27 × 5 = 540
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