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What is the Least Common Multiple of 78886 and 78898?

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 78886 and 78898 is 3111973814.

LCM(78886,78898) = 3111973814

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Least Common Multiple of 78886 and 78898 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78886 and 78898, than apply into the LCM equation.

GCF(78886,78898) = 2
LCM(78886,78898) = ( 78886 × 78898) / 2
LCM(78886,78898) = 6223947628 / 2
LCM(78886,78898) = 3111973814

Least Common Multiple (LCM) of 78886 and 78898 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78886 and 78898. First we will calculate the prime factors of 78886 and 78898.

Prime Factorization of 78886

Prime factors of 78886 are 2, 39443. Prime factorization of 78886 in exponential form is:

78886 = 21 × 394431

Prime Factorization of 78898

Prime factors of 78898 are 2, 103, 383. Prime factorization of 78898 in exponential form is:

78898 = 21 × 1031 × 3831

Now multiplying the highest exponent prime factors to calculate the LCM of 78886 and 78898.

LCM(78886,78898) = 21 × 394431 × 1031 × 3831
LCM(78886,78898) = 3111973814