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What is the Least Common Multiple of 85642 and 85659?

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 85642 and 85659 is 7336008078.

LCM(85642,85659) = 7336008078

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Least Common Multiple of 85642 and 85659 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85642 and 85659, than apply into the LCM equation.

GCF(85642,85659) = 1
LCM(85642,85659) = ( 85642 × 85659) / 1
LCM(85642,85659) = 7336008078 / 1
LCM(85642,85659) = 7336008078

Least Common Multiple (LCM) of 85642 and 85659 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85642 and 85659. First we will calculate the prime factors of 85642 and 85659.

Prime Factorization of 85642

Prime factors of 85642 are 2, 42821. Prime factorization of 85642 in exponential form is:

85642 = 21 × 428211

Prime Factorization of 85659

Prime factors of 85659 are 3, 7, 4079. Prime factorization of 85659 in exponential form is:

85659 = 31 × 71 × 40791

Now multiplying the highest exponent prime factors to calculate the LCM of 85642 and 85659.

LCM(85642,85659) = 21 × 428211 × 31 × 71 × 40791
LCM(85642,85659) = 7336008078