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What is the Least Common Multiple of 33840 and 33859?

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 33840 and 33859 is 1145788560.

LCM(33840,33859) = 1145788560

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Least Common Multiple of 33840 and 33859 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 33840 and 33859, than apply into the LCM equation.

GCF(33840,33859) = 1
LCM(33840,33859) = ( 33840 × 33859) / 1
LCM(33840,33859) = 1145788560 / 1
LCM(33840,33859) = 1145788560

Least Common Multiple (LCM) of 33840 and 33859 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 33840 and 33859. First we will calculate the prime factors of 33840 and 33859.

Prime Factorization of 33840

Prime factors of 33840 are 2, 3, 5, 47. Prime factorization of 33840 in exponential form is:

33840 = 24 × 32 × 51 × 471

Prime Factorization of 33859

Prime factors of 33859 are 7, 691. Prime factorization of 33859 in exponential form is:

33859 = 72 × 6911

Now multiplying the highest exponent prime factors to calculate the LCM of 33840 and 33859.

LCM(33840,33859) = 24 × 32 × 51 × 471 × 72 × 6911
LCM(33840,33859) = 1145788560