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What is the Least Common Multiple of 80540 and 80544?

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 80540 and 80544 is 1621753440.

LCM(80540,80544) = 1621753440

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Least Common Multiple of 80540 and 80544 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 80540 and 80544, than apply into the LCM equation.

GCF(80540,80544) = 4
LCM(80540,80544) = ( 80540 × 80544) / 4
LCM(80540,80544) = 6487013760 / 4
LCM(80540,80544) = 1621753440

Least Common Multiple (LCM) of 80540 and 80544 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 80540 and 80544. First we will calculate the prime factors of 80540 and 80544.

Prime Factorization of 80540

Prime factors of 80540 are 2, 5, 4027. Prime factorization of 80540 in exponential form is:

80540 = 22 × 51 × 40271

Prime Factorization of 80544

Prime factors of 80544 are 2, 3, 839. Prime factorization of 80544 in exponential form is:

80544 = 25 × 31 × 8391

Now multiplying the highest exponent prime factors to calculate the LCM of 80540 and 80544.

LCM(80540,80544) = 25 × 51 × 40271 × 31 × 8391
LCM(80540,80544) = 1621753440