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What is the Least Common Multiple of 77993 and 78013?

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 77993 and 78013 is 6084467909.

LCM(77993,78013) = 6084467909

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Least Common Multiple of 77993 and 78013 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77993 and 78013, than apply into the LCM equation.

GCF(77993,78013) = 1
LCM(77993,78013) = ( 77993 × 78013) / 1
LCM(77993,78013) = 6084467909 / 1
LCM(77993,78013) = 6084467909

Least Common Multiple (LCM) of 77993 and 78013 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77993 and 78013. First we will calculate the prime factors of 77993 and 78013.

Prime Factorization of 77993

Prime factors of 77993 are 23, 3391. Prime factorization of 77993 in exponential form is:

77993 = 231 × 33911

Prime Factorization of 78013

Prime factors of 78013 are 13, 17, 353. Prime factorization of 78013 in exponential form is:

78013 = 131 × 171 × 3531

Now multiplying the highest exponent prime factors to calculate the LCM of 77993 and 78013.

LCM(77993,78013) = 231 × 33911 × 131 × 171 × 3531
LCM(77993,78013) = 6084467909