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What is the Least Common Multiple of 79921 and 79939?

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 79921 and 79939 is 6388804819.

LCM(79921,79939) = 6388804819

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Least Common Multiple of 79921 and 79939 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79921 and 79939, than apply into the LCM equation.

GCF(79921,79939) = 1
LCM(79921,79939) = ( 79921 × 79939) / 1
LCM(79921,79939) = 6388804819 / 1
LCM(79921,79939) = 6388804819

Least Common Multiple (LCM) of 79921 and 79939 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79921 and 79939. First we will calculate the prime factors of 79921 and 79939.

Prime Factorization of 79921

Prime factors of 79921 are 229, 349. Prime factorization of 79921 in exponential form is:

79921 = 2291 × 3491

Prime Factorization of 79939

Prime factors of 79939 are 79939. Prime factorization of 79939 in exponential form is:

79939 = 799391

Now multiplying the highest exponent prime factors to calculate the LCM of 79921 and 79939.

LCM(79921,79939) = 2291 × 3491 × 799391
LCM(79921,79939) = 6388804819