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What is the Least Common Multiple of 77866 and 77872?

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 77866 and 77872 is 3031790576.

LCM(77866,77872) = 3031790576

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Least Common Multiple of 77866 and 77872 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77866 and 77872, than apply into the LCM equation.

GCF(77866,77872) = 2
LCM(77866,77872) = ( 77866 × 77872) / 2
LCM(77866,77872) = 6063581152 / 2
LCM(77866,77872) = 3031790576

Least Common Multiple (LCM) of 77866 and 77872 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77866 and 77872. First we will calculate the prime factors of 77866 and 77872.

Prime Factorization of 77866

Prime factors of 77866 are 2, 38933. Prime factorization of 77866 in exponential form is:

77866 = 21 × 389331

Prime Factorization of 77872

Prime factors of 77872 are 2, 31, 157. Prime factorization of 77872 in exponential form is:

77872 = 24 × 311 × 1571

Now multiplying the highest exponent prime factors to calculate the LCM of 77866 and 77872.

LCM(77866,77872) = 24 × 389331 × 311 × 1571
LCM(77866,77872) = 3031790576