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What is the Least Common Multiple of 79779 and 79788?

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 79779 and 79788 is 2121802284.

LCM(79779,79788) = 2121802284

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Least Common Multiple of 79779 and 79788 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79779 and 79788, than apply into the LCM equation.

GCF(79779,79788) = 3
LCM(79779,79788) = ( 79779 × 79788) / 3
LCM(79779,79788) = 6365406852 / 3
LCM(79779,79788) = 2121802284

Least Common Multiple (LCM) of 79779 and 79788 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79779 and 79788. First we will calculate the prime factors of 79779 and 79788.

Prime Factorization of 79779

Prime factors of 79779 are 3, 7, 29, 131. Prime factorization of 79779 in exponential form is:

79779 = 31 × 71 × 291 × 1311

Prime Factorization of 79788

Prime factors of 79788 are 2, 3, 61, 109. Prime factorization of 79788 in exponential form is:

79788 = 22 × 31 × 611 × 1091

Now multiplying the highest exponent prime factors to calculate the LCM of 79779 and 79788.

LCM(79779,79788) = 31 × 71 × 291 × 1311 × 22 × 611 × 1091
LCM(79779,79788) = 2121802284