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What is the Least Common Multiple of 74538 and 74543?

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 74538 and 74543 is 5556286134.

LCM(74538,74543) = 5556286134

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Least Common Multiple of 74538 and 74543 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74538 and 74543, than apply into the LCM equation.

GCF(74538,74543) = 1
LCM(74538,74543) = ( 74538 × 74543) / 1
LCM(74538,74543) = 5556286134 / 1
LCM(74538,74543) = 5556286134

Least Common Multiple (LCM) of 74538 and 74543 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74538 and 74543. First we will calculate the prime factors of 74538 and 74543.

Prime Factorization of 74538

Prime factors of 74538 are 2, 3, 41, 101. Prime factorization of 74538 in exponential form is:

74538 = 21 × 32 × 411 × 1011

Prime Factorization of 74543

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

74543 = 71 × 231 × 4631

Now multiplying the highest exponent prime factors to calculate the LCM of 74538 and 74543.

LCM(74538,74543) = 21 × 32 × 411 × 1011 × 71 × 231 × 4631
LCM(74538,74543) = 5556286134