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What is the Least Common Multiple of 11781 and 11786?

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 11781 and 11786 is 138850866.

LCM(11781,11786) = 138850866

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Least Common Multiple of 11781 and 11786 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11781 and 11786, than apply into the LCM equation.

GCF(11781,11786) = 1
LCM(11781,11786) = ( 11781 × 11786) / 1
LCM(11781,11786) = 138850866 / 1
LCM(11781,11786) = 138850866

Least Common Multiple (LCM) of 11781 and 11786 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11781 and 11786. First we will calculate the prime factors of 11781 and 11786.

Prime Factorization of 11781

Prime factors of 11781 are 3, 7, 11, 17. Prime factorization of 11781 in exponential form is:

11781 = 32 × 71 × 111 × 171

Prime Factorization of 11786

Prime factors of 11786 are 2, 71, 83. Prime factorization of 11786 in exponential form is:

11786 = 21 × 711 × 831

Now multiplying the highest exponent prime factors to calculate the LCM of 11781 and 11786.

LCM(11781,11786) = 32 × 71 × 111 × 171 × 21 × 711 × 831
LCM(11781,11786) = 138850866