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What is the Least Common Multiple of 85906 and 85915?

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 85906 and 85915 is 7380613990.

LCM(85906,85915) = 7380613990

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Least Common Multiple of 85906 and 85915 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85906 and 85915, than apply into the LCM equation.

GCF(85906,85915) = 1
LCM(85906,85915) = ( 85906 × 85915) / 1
LCM(85906,85915) = 7380613990 / 1
LCM(85906,85915) = 7380613990

Least Common Multiple (LCM) of 85906 and 85915 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85906 and 85915. First we will calculate the prime factors of 85906 and 85915.

Prime Factorization of 85906

Prime factors of 85906 are 2, 42953. Prime factorization of 85906 in exponential form is:

85906 = 21 × 429531

Prime Factorization of 85915

Prime factors of 85915 are 5, 17183. Prime factorization of 85915 in exponential form is:

85915 = 51 × 171831

Now multiplying the highest exponent prime factors to calculate the LCM of 85906 and 85915.

LCM(85906,85915) = 21 × 429531 × 51 × 171831
LCM(85906,85915) = 7380613990