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What is the Least Common Multiple of 47691 and 47705?

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 47691 and 47705 is 325014165.

LCM(47691,47705) = 325014165

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Least Common Multiple of 47691 and 47705 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47691 and 47705, than apply into the LCM equation.

GCF(47691,47705) = 7
LCM(47691,47705) = ( 47691 × 47705) / 7
LCM(47691,47705) = 2275099155 / 7
LCM(47691,47705) = 325014165

Least Common Multiple (LCM) of 47691 and 47705 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47691 and 47705. First we will calculate the prime factors of 47691 and 47705.

Prime Factorization of 47691

Prime factors of 47691 are 3, 7, 757. Prime factorization of 47691 in exponential form is:

47691 = 32 × 71 × 7571

Prime Factorization of 47705

Prime factors of 47705 are 5, 7, 29, 47. Prime factorization of 47705 in exponential form is:

47705 = 51 × 71 × 291 × 471

Now multiplying the highest exponent prime factors to calculate the LCM of 47691 and 47705.

LCM(47691,47705) = 32 × 71 × 7571 × 51 × 291 × 471
LCM(47691,47705) = 325014165