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What is the Least Common Multiple of 78904 and 78918?

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 78904 and 78918 is 444781848.

LCM(78904,78918) = 444781848

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Least Common Multiple of 78904 and 78918 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78904 and 78918, than apply into the LCM equation.

GCF(78904,78918) = 14
LCM(78904,78918) = ( 78904 × 78918) / 14
LCM(78904,78918) = 6226945872 / 14
LCM(78904,78918) = 444781848

Least Common Multiple (LCM) of 78904 and 78918 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78904 and 78918. First we will calculate the prime factors of 78904 and 78918.

Prime Factorization of 78904

Prime factors of 78904 are 2, 7, 1409. Prime factorization of 78904 in exponential form is:

78904 = 23 × 71 × 14091

Prime Factorization of 78918

Prime factors of 78918 are 2, 3, 7, 1879. Prime factorization of 78918 in exponential form is:

78918 = 21 × 31 × 71 × 18791

Now multiplying the highest exponent prime factors to calculate the LCM of 78904 and 78918.

LCM(78904,78918) = 23 × 71 × 14091 × 31 × 18791
LCM(78904,78918) = 444781848