Find the HCF and LCM of 21,33,45 by factorisation method.
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Answer:
Least Common Multiple of 21 and 33
Least common multiple (LCM) of 21 and 33 is 231.
LCM(21,33) = 231
Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.
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Step-by-step explanation:
1.
Least common multiple (LCM) of 21 and 33 is 231.
2.
heighest common factor (HCF) of 21 and 33 is 3.
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