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What is the Least Common Multiple of 78659 and 78679?

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 78659 and 78679 is 6188811461.

LCM(78659,78679) = 6188811461

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Least Common Multiple of 78659 and 78679 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78659 and 78679, than apply into the LCM equation.

GCF(78659,78679) = 1
LCM(78659,78679) = ( 78659 × 78679) / 1
LCM(78659,78679) = 6188811461 / 1
LCM(78659,78679) = 6188811461

Least Common Multiple (LCM) of 78659 and 78679 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78659 and 78679. First we will calculate the prime factors of 78659 and 78679.

Prime Factorization of 78659

Prime factors of 78659 are 7, 17, 661. Prime factorization of 78659 in exponential form is:

78659 = 71 × 171 × 6611

Prime Factorization of 78679

Prime factors of 78679 are 19, 41, 101. Prime factorization of 78679 in exponential form is:

78679 = 191 × 411 × 1011

Now multiplying the highest exponent prime factors to calculate the LCM of 78659 and 78679.

LCM(78659,78679) = 71 × 171 × 6611 × 191 × 411 × 1011
LCM(78659,78679) = 6188811461