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What is the Least Common Multiple of 78946 and 78950?

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 78946 and 78950 is 3116393350.

LCM(78946,78950) = 3116393350

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Least Common Multiple of 78946 and 78950 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78946 and 78950, than apply into the LCM equation.

GCF(78946,78950) = 2
LCM(78946,78950) = ( 78946 × 78950) / 2
LCM(78946,78950) = 6232786700 / 2
LCM(78946,78950) = 3116393350

Least Common Multiple (LCM) of 78946 and 78950 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78946 and 78950. First we will calculate the prime factors of 78946 and 78950.

Prime Factorization of 78946

Prime factors of 78946 are 2, 7, 5639. Prime factorization of 78946 in exponential form is:

78946 = 21 × 71 × 56391

Prime Factorization of 78950

Prime factors of 78950 are 2, 5, 1579. Prime factorization of 78950 in exponential form is:

78950 = 21 × 52 × 15791

Now multiplying the highest exponent prime factors to calculate the LCM of 78946 and 78950.

LCM(78946,78950) = 21 × 71 × 56391 × 52 × 15791
LCM(78946,78950) = 3116393350