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What is the Least Common Multiple of 91370 and 91378?

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 91370 and 91378 is 4174603930.

LCM(91370,91378) = 4174603930

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Least Common Multiple of 91370 and 91378 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91370 and 91378, than apply into the LCM equation.

GCF(91370,91378) = 2
LCM(91370,91378) = ( 91370 × 91378) / 2
LCM(91370,91378) = 8349207860 / 2
LCM(91370,91378) = 4174603930

Least Common Multiple (LCM) of 91370 and 91378 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91370 and 91378. First we will calculate the prime factors of 91370 and 91378.

Prime Factorization of 91370

Prime factors of 91370 are 2, 5, 9137. Prime factorization of 91370 in exponential form is:

91370 = 21 × 51 × 91371

Prime Factorization of 91378

Prime factors of 91378 are 2, 7, 61, 107. Prime factorization of 91378 in exponential form is:

91378 = 21 × 71 × 611 × 1071

Now multiplying the highest exponent prime factors to calculate the LCM of 91370 and 91378.

LCM(91370,91378) = 21 × 51 × 91371 × 71 × 611 × 1071
LCM(91370,91378) = 4174603930