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What is the Least Common Multiple of 91670 and 91678?

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 91670 and 91678 is 4202061130.

LCM(91670,91678) = 4202061130

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Least Common Multiple of 91670 and 91678 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91670 and 91678, than apply into the LCM equation.

GCF(91670,91678) = 2
LCM(91670,91678) = ( 91670 × 91678) / 2
LCM(91670,91678) = 8404122260 / 2
LCM(91670,91678) = 4202061130

Least Common Multiple (LCM) of 91670 and 91678 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91670 and 91678. First we will calculate the prime factors of 91670 and 91678.

Prime Factorization of 91670

Prime factors of 91670 are 2, 5, 89, 103. Prime factorization of 91670 in exponential form is:

91670 = 21 × 51 × 891 × 1031

Prime Factorization of 91678

Prime factors of 91678 are 2, 23, 1993. Prime factorization of 91678 in exponential form is:

91678 = 21 × 231 × 19931

Now multiplying the highest exponent prime factors to calculate the LCM of 91670 and 91678.

LCM(91670,91678) = 21 × 51 × 891 × 1031 × 231 × 19931
LCM(91670,91678) = 4202061130