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What is the Least Common Multiple of 51978 and 51989?

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 51978 and 51989 is 2702284242.

LCM(51978,51989) = 2702284242

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Least Common Multiple of 51978 and 51989 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51978 and 51989, than apply into the LCM equation.

GCF(51978,51989) = 1
LCM(51978,51989) = ( 51978 × 51989) / 1
LCM(51978,51989) = 2702284242 / 1
LCM(51978,51989) = 2702284242

Least Common Multiple (LCM) of 51978 and 51989 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51978 and 51989. First we will calculate the prime factors of 51978 and 51989.

Prime Factorization of 51978

Prime factors of 51978 are 2, 3, 8663. Prime factorization of 51978 in exponential form is:

51978 = 21 × 31 × 86631

Prime Factorization of 51989

Prime factors of 51989 are 7, 1061. Prime factorization of 51989 in exponential form is:

51989 = 72 × 10611

Now multiplying the highest exponent prime factors to calculate the LCM of 51978 and 51989.

LCM(51978,51989) = 21 × 31 × 86631 × 72 × 10611
LCM(51978,51989) = 2702284242