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What is the Least Common Multiple of 78634 and 78639?

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 78634 and 78639 is 6183699126.

LCM(78634,78639) = 6183699126

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Least Common Multiple of 78634 and 78639 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78634 and 78639, than apply into the LCM equation.

GCF(78634,78639) = 1
LCM(78634,78639) = ( 78634 × 78639) / 1
LCM(78634,78639) = 6183699126 / 1
LCM(78634,78639) = 6183699126

Least Common Multiple (LCM) of 78634 and 78639 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78634 and 78639. First we will calculate the prime factors of 78634 and 78639.

Prime Factorization of 78634

Prime factors of 78634 are 2, 39317. Prime factorization of 78634 in exponential form is:

78634 = 21 × 393171

Prime Factorization of 78639

Prime factors of 78639 are 3, 11, 2383. Prime factorization of 78639 in exponential form is:

78639 = 31 × 111 × 23831

Now multiplying the highest exponent prime factors to calculate the LCM of 78634 and 78639.

LCM(78634,78639) = 21 × 393171 × 31 × 111 × 23831
LCM(78634,78639) = 6183699126