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What is the Least Common Multiple of 42928 and 42944?

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 42928 and 42944 is 115218752.

LCM(42928,42944) = 115218752

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Least Common Multiple of 42928 and 42944 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42928 and 42944, than apply into the LCM equation.

GCF(42928,42944) = 16
LCM(42928,42944) = ( 42928 × 42944) / 16
LCM(42928,42944) = 1843500032 / 16
LCM(42928,42944) = 115218752

Least Common Multiple (LCM) of 42928 and 42944 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42928 and 42944. First we will calculate the prime factors of 42928 and 42944.

Prime Factorization of 42928

Prime factors of 42928 are 2, 2683. Prime factorization of 42928 in exponential form is:

42928 = 24 × 26831

Prime Factorization of 42944

Prime factors of 42944 are 2, 11, 61. Prime factorization of 42944 in exponential form is:

42944 = 26 × 111 × 611

Now multiplying the highest exponent prime factors to calculate the LCM of 42928 and 42944.

LCM(42928,42944) = 26 × 26831 × 111 × 611
LCM(42928,42944) = 115218752