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What is the Least Common Multiple of 23781 and 23785?

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 23781 and 23785 is 565631085.

LCM(23781,23785) = 565631085

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Least Common Multiple of 23781 and 23785 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23781 and 23785, than apply into the LCM equation.

GCF(23781,23785) = 1
LCM(23781,23785) = ( 23781 × 23785) / 1
LCM(23781,23785) = 565631085 / 1
LCM(23781,23785) = 565631085

Least Common Multiple (LCM) of 23781 and 23785 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23781 and 23785. First we will calculate the prime factors of 23781 and 23785.

Prime Factorization of 23781

Prime factors of 23781 are 3, 7927. Prime factorization of 23781 in exponential form is:

23781 = 31 × 79271

Prime Factorization of 23785

Prime factors of 23785 are 5, 67, 71. Prime factorization of 23785 in exponential form is:

23785 = 51 × 671 × 711

Now multiplying the highest exponent prime factors to calculate the LCM of 23781 and 23785.

LCM(23781,23785) = 31 × 79271 × 51 × 671 × 711
LCM(23781,23785) = 565631085