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What is the Least Common Multiple of 91630 and 91643?

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 91630 and 91643 is 8397248090.

LCM(91630,91643) = 8397248090

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Least Common Multiple of 91630 and 91643 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91630 and 91643, than apply into the LCM equation.

GCF(91630,91643) = 1
LCM(91630,91643) = ( 91630 × 91643) / 1
LCM(91630,91643) = 8397248090 / 1
LCM(91630,91643) = 8397248090

Least Common Multiple (LCM) of 91630 and 91643 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91630 and 91643. First we will calculate the prime factors of 91630 and 91643.

Prime Factorization of 91630

Prime factors of 91630 are 2, 5, 7, 11, 17. Prime factorization of 91630 in exponential form is:

91630 = 21 × 51 × 72 × 111 × 171

Prime Factorization of 91643

Prime factors of 91643 are 113, 811. Prime factorization of 91643 in exponential form is:

91643 = 1131 × 8111

Now multiplying the highest exponent prime factors to calculate the LCM of 91630 and 91643.

LCM(91630,91643) = 21 × 51 × 72 × 111 × 171 × 1131 × 8111
LCM(91630,91643) = 8397248090