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What is the Least Common Multiple of 42586 and 42591?

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 42586 and 42591 is 1813780326.

LCM(42586,42591) = 1813780326

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Least Common Multiple of 42586 and 42591 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42586 and 42591, than apply into the LCM equation.

GCF(42586,42591) = 1
LCM(42586,42591) = ( 42586 × 42591) / 1
LCM(42586,42591) = 1813780326 / 1
LCM(42586,42591) = 1813780326

Least Common Multiple (LCM) of 42586 and 42591 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42586 and 42591. First we will calculate the prime factors of 42586 and 42591.

Prime Factorization of 42586

Prime factors of 42586 are 2, 107, 199. Prime factorization of 42586 in exponential form is:

42586 = 21 × 1071 × 1991

Prime Factorization of 42591

Prime factors of 42591 are 3, 14197. Prime factorization of 42591 in exponential form is:

42591 = 31 × 141971

Now multiplying the highest exponent prime factors to calculate the LCM of 42586 and 42591.

LCM(42586,42591) = 21 × 1071 × 1991 × 31 × 141971
LCM(42586,42591) = 1813780326