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What is the Least Common Multiple of 86768 and 86780?

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 86768 and 86780 is 1882431760.

LCM(86768,86780) = 1882431760

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Least Common Multiple of 86768 and 86780 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86768 and 86780, than apply into the LCM equation.

GCF(86768,86780) = 4
LCM(86768,86780) = ( 86768 × 86780) / 4
LCM(86768,86780) = 7529727040 / 4
LCM(86768,86780) = 1882431760

Least Common Multiple (LCM) of 86768 and 86780 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86768 and 86780. First we will calculate the prime factors of 86768 and 86780.

Prime Factorization of 86768

Prime factors of 86768 are 2, 11, 17, 29. Prime factorization of 86768 in exponential form is:

86768 = 24 × 111 × 171 × 291

Prime Factorization of 86780

Prime factors of 86780 are 2, 5, 4339. Prime factorization of 86780 in exponential form is:

86780 = 22 × 51 × 43391

Now multiplying the highest exponent prime factors to calculate the LCM of 86768 and 86780.

LCM(86768,86780) = 24 × 111 × 171 × 291 × 51 × 43391
LCM(86768,86780) = 1882431760