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What is the Least Common Multiple of 38665 and 38680?

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 38665 and 38680 is 299112440.

LCM(38665,38680) = 299112440

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Least Common Multiple of 38665 and 38680 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38665 and 38680, than apply into the LCM equation.

GCF(38665,38680) = 5
LCM(38665,38680) = ( 38665 × 38680) / 5
LCM(38665,38680) = 1495562200 / 5
LCM(38665,38680) = 299112440

Least Common Multiple (LCM) of 38665 and 38680 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38665 and 38680. First we will calculate the prime factors of 38665 and 38680.

Prime Factorization of 38665

Prime factors of 38665 are 5, 11, 19, 37. Prime factorization of 38665 in exponential form is:

38665 = 51 × 111 × 191 × 371

Prime Factorization of 38680

Prime factors of 38680 are 2, 5, 967. Prime factorization of 38680 in exponential form is:

38680 = 23 × 51 × 9671

Now multiplying the highest exponent prime factors to calculate the LCM of 38665 and 38680.

LCM(38665,38680) = 51 × 111 × 191 × 371 × 23 × 9671
LCM(38665,38680) = 299112440