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What is the Least Common Multiple of 79874 and 79878?

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 79874 and 79878 is 3190087686.

LCM(79874,79878) = 3190087686

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Least Common Multiple of 79874 and 79878 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79874 and 79878, than apply into the LCM equation.

GCF(79874,79878) = 2
LCM(79874,79878) = ( 79874 × 79878) / 2
LCM(79874,79878) = 6380175372 / 2
LCM(79874,79878) = 3190087686

Least Common Multiple (LCM) of 79874 and 79878 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79874 and 79878. First we will calculate the prime factors of 79874 and 79878.

Prime Factorization of 79874

Prime factors of 79874 are 2, 39937. Prime factorization of 79874 in exponential form is:

79874 = 21 × 399371

Prime Factorization of 79878

Prime factors of 79878 are 2, 3, 13313. Prime factorization of 79878 in exponential form is:

79878 = 21 × 31 × 133131

Now multiplying the highest exponent prime factors to calculate the LCM of 79874 and 79878.

LCM(79874,79878) = 21 × 399371 × 31 × 133131
LCM(79874,79878) = 3190087686