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What is the Least Common Multiple of 77862 and 77878?

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 77862 and 77878 is 3031868418.

LCM(77862,77878) = 3031868418

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Least Common Multiple of 77862 and 77878 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77862 and 77878, than apply into the LCM equation.

GCF(77862,77878) = 2
LCM(77862,77878) = ( 77862 × 77878) / 2
LCM(77862,77878) = 6063736836 / 2
LCM(77862,77878) = 3031868418

Least Common Multiple (LCM) of 77862 and 77878 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77862 and 77878. First we will calculate the prime factors of 77862 and 77878.

Prime Factorization of 77862

Prime factors of 77862 are 2, 3, 19, 683. Prime factorization of 77862 in exponential form is:

77862 = 21 × 31 × 191 × 6831

Prime Factorization of 77878

Prime factors of 77878 are 2, 23, 1693. Prime factorization of 77878 in exponential form is:

77878 = 21 × 231 × 16931

Now multiplying the highest exponent prime factors to calculate the LCM of 77862 and 77878.

LCM(77862,77878) = 21 × 31 × 191 × 6831 × 231 × 16931
LCM(77862,77878) = 3031868418