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What is the Least Common Multiple of 74543 and 74560?

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.

Least common multiple (LCM) of 74543 and 74560 is 5557926080.

LCM(74543,74560) = 5557926080

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Least Common Multiple of 74543 and 74560 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74543 and 74560, than apply into the LCM equation.

GCF(74543,74560) = 1
LCM(74543,74560) = ( 74543 × 74560) / 1
LCM(74543,74560) = 5557926080 / 1
LCM(74543,74560) = 5557926080

Least Common Multiple (LCM) of 74543 and 74560 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74543 and 74560. First we will calculate the prime factors of 74543 and 74560.

Prime Factorization of 74543

Prime factors of 74543 are 7, 23, 463. Prime factorization of 74543 in exponential form is:

74543 = 71 × 231 × 4631

Prime Factorization of 74560

Prime factors of 74560 are 2, 5, 233. Prime factorization of 74560 in exponential form is:

74560 = 26 × 51 × 2331

Now multiplying the highest exponent prime factors to calculate the LCM of 74543 and 74560.

LCM(74543,74560) = 71 × 231 × 4631 × 26 × 51 × 2331
LCM(74543,74560) = 5557926080