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What is the Least Common Multiple of 85931 and 85940?

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 85931 and 85940 is 7384910140.

LCM(85931,85940) = 7384910140

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Least Common Multiple of 85931 and 85940 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85931 and 85940, than apply into the LCM equation.

GCF(85931,85940) = 1
LCM(85931,85940) = ( 85931 × 85940) / 1
LCM(85931,85940) = 7384910140 / 1
LCM(85931,85940) = 7384910140

Least Common Multiple (LCM) of 85931 and 85940 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85931 and 85940. First we will calculate the prime factors of 85931 and 85940.

Prime Factorization of 85931

Prime factors of 85931 are 85931. Prime factorization of 85931 in exponential form is:

85931 = 859311

Prime Factorization of 85940

Prime factors of 85940 are 2, 5, 4297. Prime factorization of 85940 in exponential form is:

85940 = 22 × 51 × 42971

Now multiplying the highest exponent prime factors to calculate the LCM of 85931 and 85940.

LCM(85931,85940) = 859311 × 22 × 51 × 42971
LCM(85931,85940) = 7384910140