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What is the Least Common Multiple of 77159 and 77178?

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 77159 and 77178 is 313419858.

LCM(77159,77178) = 313419858

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Least Common Multiple of 77159 and 77178 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77159 and 77178, than apply into the LCM equation.

GCF(77159,77178) = 19
LCM(77159,77178) = ( 77159 × 77178) / 19
LCM(77159,77178) = 5954977302 / 19
LCM(77159,77178) = 313419858

Least Common Multiple (LCM) of 77159 and 77178 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77159 and 77178. First we will calculate the prime factors of 77159 and 77178.

Prime Factorization of 77159

Prime factors of 77159 are 19, 31, 131. Prime factorization of 77159 in exponential form is:

77159 = 191 × 311 × 1311

Prime Factorization of 77178

Prime factors of 77178 are 2, 3, 19, 677. Prime factorization of 77178 in exponential form is:

77178 = 21 × 31 × 191 × 6771

Now multiplying the highest exponent prime factors to calculate the LCM of 77159 and 77178.

LCM(77159,77178) = 191 × 311 × 1311 × 21 × 31 × 6771
LCM(77159,77178) = 313419858