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What is the Least Common Multiple of 78766 and 78770?

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 78766 and 78770 is 3102198910.

LCM(78766,78770) = 3102198910

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Least Common Multiple of 78766 and 78770 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78766 and 78770, than apply into the LCM equation.

GCF(78766,78770) = 2
LCM(78766,78770) = ( 78766 × 78770) / 2
LCM(78766,78770) = 6204397820 / 2
LCM(78766,78770) = 3102198910

Least Common Multiple (LCM) of 78766 and 78770 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78766 and 78770. First we will calculate the prime factors of 78766 and 78770.

Prime Factorization of 78766

Prime factors of 78766 are 2, 39383. Prime factorization of 78766 in exponential form is:

78766 = 21 × 393831

Prime Factorization of 78770

Prime factors of 78770 are 2, 5, 7877. Prime factorization of 78770 in exponential form is:

78770 = 21 × 51 × 78771

Now multiplying the highest exponent prime factors to calculate the LCM of 78766 and 78770.

LCM(78766,78770) = 21 × 393831 × 51 × 78771
LCM(78766,78770) = 3102198910