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What is the Least Common Multiple of 78906 and 78914?

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 78906 and 78914 is 3113394042.

LCM(78906,78914) = 3113394042

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Least Common Multiple of 78906 and 78914 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78906 and 78914, than apply into the LCM equation.

GCF(78906,78914) = 2
LCM(78906,78914) = ( 78906 × 78914) / 2
LCM(78906,78914) = 6226788084 / 2
LCM(78906,78914) = 3113394042

Least Common Multiple (LCM) of 78906 and 78914 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78906 and 78914. First we will calculate the prime factors of 78906 and 78914.

Prime Factorization of 78906

Prime factors of 78906 are 2, 3, 13151. Prime factorization of 78906 in exponential form is:

78906 = 21 × 31 × 131511

Prime Factorization of 78914

Prime factors of 78914 are 2, 11, 17, 211. Prime factorization of 78914 in exponential form is:

78914 = 21 × 111 × 171 × 2111

Now multiplying the highest exponent prime factors to calculate the LCM of 78906 and 78914.

LCM(78906,78914) = 21 × 31 × 131511 × 111 × 171 × 2111
LCM(78906,78914) = 3113394042