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What is the Least Common Multiple of 64845 and 64861?

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 64845 and 64861 is 4205911545.

LCM(64845,64861) = 4205911545

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Least Common Multiple of 64845 and 64861 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64845 and 64861, than apply into the LCM equation.

GCF(64845,64861) = 1
LCM(64845,64861) = ( 64845 × 64861) / 1
LCM(64845,64861) = 4205911545 / 1
LCM(64845,64861) = 4205911545

Least Common Multiple (LCM) of 64845 and 64861 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64845 and 64861. First we will calculate the prime factors of 64845 and 64861.

Prime Factorization of 64845

Prime factors of 64845 are 3, 5, 11, 131. Prime factorization of 64845 in exponential form is:

64845 = 32 × 51 × 111 × 1311

Prime Factorization of 64861

Prime factors of 64861 are 37, 1753. Prime factorization of 64861 in exponential form is:

64861 = 371 × 17531

Now multiplying the highest exponent prime factors to calculate the LCM of 64845 and 64861.

LCM(64845,64861) = 32 × 51 × 111 × 1311 × 371 × 17531
LCM(64845,64861) = 4205911545