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What is the Least Common Multiple of 87736 and 87740?

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 87736 and 87740 is 1924489160.

LCM(87736,87740) = 1924489160

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Least Common Multiple of 87736 and 87740 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87736 and 87740, than apply into the LCM equation.

GCF(87736,87740) = 4
LCM(87736,87740) = ( 87736 × 87740) / 4
LCM(87736,87740) = 7697956640 / 4
LCM(87736,87740) = 1924489160

Least Common Multiple (LCM) of 87736 and 87740 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87736 and 87740. First we will calculate the prime factors of 87736 and 87740.

Prime Factorization of 87736

Prime factors of 87736 are 2, 11, 997. Prime factorization of 87736 in exponential form is:

87736 = 23 × 111 × 9971

Prime Factorization of 87740

Prime factors of 87740 are 2, 5, 41, 107. Prime factorization of 87740 in exponential form is:

87740 = 22 × 51 × 411 × 1071

Now multiplying the highest exponent prime factors to calculate the LCM of 87736 and 87740.

LCM(87736,87740) = 23 × 111 × 9971 × 51 × 411 × 1071
LCM(87736,87740) = 1924489160