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What is the Least Common Multiple of 71858 and 71865?

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 71858 and 71865 is 5164075170.

LCM(71858,71865) = 5164075170

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Least Common Multiple of 71858 and 71865 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71858 and 71865, than apply into the LCM equation.

GCF(71858,71865) = 1
LCM(71858,71865) = ( 71858 × 71865) / 1
LCM(71858,71865) = 5164075170 / 1
LCM(71858,71865) = 5164075170

Least Common Multiple (LCM) of 71858 and 71865 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71858 and 71865. First we will calculate the prime factors of 71858 and 71865.

Prime Factorization of 71858

Prime factors of 71858 are 2, 19, 31, 61. Prime factorization of 71858 in exponential form is:

71858 = 21 × 191 × 311 × 611

Prime Factorization of 71865

Prime factors of 71865 are 3, 5, 1597. Prime factorization of 71865 in exponential form is:

71865 = 32 × 51 × 15971

Now multiplying the highest exponent prime factors to calculate the LCM of 71858 and 71865.

LCM(71858,71865) = 21 × 191 × 311 × 611 × 32 × 51 × 15971
LCM(71858,71865) = 5164075170