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What is the Least Common Multiple of 70845 and 70861?

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 70845 and 70861 is 5020147545.

LCM(70845,70861) = 5020147545

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Least Common Multiple of 70845 and 70861 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70845 and 70861, than apply into the LCM equation.

GCF(70845,70861) = 1
LCM(70845,70861) = ( 70845 × 70861) / 1
LCM(70845,70861) = 5020147545 / 1
LCM(70845,70861) = 5020147545

Least Common Multiple (LCM) of 70845 and 70861 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70845 and 70861. First we will calculate the prime factors of 70845 and 70861.

Prime Factorization of 70845

Prime factors of 70845 are 3, 5, 4723. Prime factorization of 70845 in exponential form is:

70845 = 31 × 51 × 47231

Prime Factorization of 70861

Prime factors of 70861 are 7, 53, 191. Prime factorization of 70861 in exponential form is:

70861 = 71 × 531 × 1911

Now multiplying the highest exponent prime factors to calculate the LCM of 70845 and 70861.

LCM(70845,70861) = 31 × 51 × 47231 × 71 × 531 × 1911
LCM(70845,70861) = 5020147545