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What is the Least Common Multiple of 91648 and 91658?

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 91648 and 91658 is 4200136192.

LCM(91648,91658) = 4200136192

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Least Common Multiple of 91648 and 91658 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91648 and 91658, than apply into the LCM equation.

GCF(91648,91658) = 2
LCM(91648,91658) = ( 91648 × 91658) / 2
LCM(91648,91658) = 8400272384 / 2
LCM(91648,91658) = 4200136192

Least Common Multiple (LCM) of 91648 and 91658 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91648 and 91658. First we will calculate the prime factors of 91648 and 91658.

Prime Factorization of 91648

Prime factors of 91648 are 2, 179. Prime factorization of 91648 in exponential form is:

91648 = 29 × 1791

Prime Factorization of 91658

Prime factors of 91658 are 2, 7, 6547. Prime factorization of 91658 in exponential form is:

91658 = 21 × 71 × 65471

Now multiplying the highest exponent prime factors to calculate the LCM of 91648 and 91658.

LCM(91648,91658) = 29 × 1791 × 71 × 65471
LCM(91648,91658) = 4200136192