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What is the Least Common Multiple of 79858 and 79872?

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 79858 and 79872 is 3189209088.

LCM(79858,79872) = 3189209088

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Least Common Multiple of 79858 and 79872 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79858 and 79872, than apply into the LCM equation.

GCF(79858,79872) = 2
LCM(79858,79872) = ( 79858 × 79872) / 2
LCM(79858,79872) = 6378418176 / 2
LCM(79858,79872) = 3189209088

Least Common Multiple (LCM) of 79858 and 79872 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79858 and 79872. First we will calculate the prime factors of 79858 and 79872.

Prime Factorization of 79858

Prime factors of 79858 are 2, 39929. Prime factorization of 79858 in exponential form is:

79858 = 21 × 399291

Prime Factorization of 79872

Prime factors of 79872 are 2, 3, 13. Prime factorization of 79872 in exponential form is:

79872 = 211 × 31 × 131

Now multiplying the highest exponent prime factors to calculate the LCM of 79858 and 79872.

LCM(79858,79872) = 211 × 399291 × 31 × 131
LCM(79858,79872) = 3189209088