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What is the Least Common Multiple of 87109 and 87123?

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 87109 and 87123 is 7589197407.

LCM(87109,87123) = 7589197407

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Least Common Multiple of 87109 and 87123 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87109 and 87123, than apply into the LCM equation.

GCF(87109,87123) = 1
LCM(87109,87123) = ( 87109 × 87123) / 1
LCM(87109,87123) = 7589197407 / 1
LCM(87109,87123) = 7589197407

Least Common Multiple (LCM) of 87109 and 87123 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87109 and 87123. First we will calculate the prime factors of 87109 and 87123.

Prime Factorization of 87109

Prime factors of 87109 are 11, 7919. Prime factorization of 87109 in exponential form is:

87109 = 111 × 79191

Prime Factorization of 87123

Prime factors of 87123 are 3, 113, 257. Prime factorization of 87123 in exponential form is:

87123 = 31 × 1131 × 2571

Now multiplying the highest exponent prime factors to calculate the LCM of 87109 and 87123.

LCM(87109,87123) = 111 × 79191 × 31 × 1131 × 2571
LCM(87109,87123) = 7589197407