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What is the Least Common Multiple of 78647 and 78663?

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 78647 and 78663 is 6186608961.

LCM(78647,78663) = 6186608961

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Least Common Multiple of 78647 and 78663 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78647 and 78663, than apply into the LCM equation.

GCF(78647,78663) = 1
LCM(78647,78663) = ( 78647 × 78663) / 1
LCM(78647,78663) = 6186608961 / 1
LCM(78647,78663) = 6186608961

Least Common Multiple (LCM) of 78647 and 78663 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78647 and 78663. First we will calculate the prime factors of 78647 and 78663.

Prime Factorization of 78647

Prime factors of 78647 are 31, 43, 59. Prime factorization of 78647 in exponential form is:

78647 = 311 × 431 × 591

Prime Factorization of 78663

Prime factors of 78663 are 3, 13, 2017. Prime factorization of 78663 in exponential form is:

78663 = 31 × 131 × 20171

Now multiplying the highest exponent prime factors to calculate the LCM of 78647 and 78663.

LCM(78647,78663) = 311 × 431 × 591 × 31 × 131 × 20171
LCM(78647,78663) = 6186608961