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What is the Least Common Multiple of 90861 and 90865?

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 90861 and 90865 is 8256084765.

LCM(90861,90865) = 8256084765

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Least Common Multiple of 90861 and 90865 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90861 and 90865, than apply into the LCM equation.

GCF(90861,90865) = 1
LCM(90861,90865) = ( 90861 × 90865) / 1
LCM(90861,90865) = 8256084765 / 1
LCM(90861,90865) = 8256084765

Least Common Multiple (LCM) of 90861 and 90865 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90861 and 90865. First we will calculate the prime factors of 90861 and 90865.

Prime Factorization of 90861

Prime factors of 90861 are 3, 31, 977. Prime factorization of 90861 in exponential form is:

90861 = 31 × 311 × 9771

Prime Factorization of 90865

Prime factors of 90865 are 5, 17, 1069. Prime factorization of 90865 in exponential form is:

90865 = 51 × 171 × 10691

Now multiplying the highest exponent prime factors to calculate the LCM of 90861 and 90865.

LCM(90861,90865) = 31 × 311 × 9771 × 51 × 171 × 10691
LCM(90861,90865) = 8256084765