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What is the Least Common Multiple of 91238 and 91254?

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 91238 and 91254 is 4162916226.

LCM(91238,91254) = 4162916226

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Least Common Multiple of 91238 and 91254 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91238 and 91254, than apply into the LCM equation.

GCF(91238,91254) = 2
LCM(91238,91254) = ( 91238 × 91254) / 2
LCM(91238,91254) = 8325832452 / 2
LCM(91238,91254) = 4162916226

Least Common Multiple (LCM) of 91238 and 91254 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91238 and 91254. First we will calculate the prime factors of 91238 and 91254.

Prime Factorization of 91238

Prime factors of 91238 are 2, 7, 19. Prime factorization of 91238 in exponential form is:

91238 = 21 × 74 × 191

Prime Factorization of 91254

Prime factors of 91254 are 2, 3, 67, 227. Prime factorization of 91254 in exponential form is:

91254 = 21 × 31 × 671 × 2271

Now multiplying the highest exponent prime factors to calculate the LCM of 91238 and 91254.

LCM(91238,91254) = 21 × 74 × 191 × 31 × 671 × 2271
LCM(91238,91254) = 4162916226