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What is the Least Common Multiple of 51665 and 51680?

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 51665 and 51680 is 534009440.

LCM(51665,51680) = 534009440

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Least Common Multiple of 51665 and 51680 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51665 and 51680, than apply into the LCM equation.

GCF(51665,51680) = 5
LCM(51665,51680) = ( 51665 × 51680) / 5
LCM(51665,51680) = 2670047200 / 5
LCM(51665,51680) = 534009440

Least Common Multiple (LCM) of 51665 and 51680 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51665 and 51680. First we will calculate the prime factors of 51665 and 51680.

Prime Factorization of 51665

Prime factors of 51665 are 5, 10333. Prime factorization of 51665 in exponential form is:

51665 = 51 × 103331

Prime Factorization of 51680

Prime factors of 51680 are 2, 5, 17, 19. Prime factorization of 51680 in exponential form is:

51680 = 25 × 51 × 171 × 191

Now multiplying the highest exponent prime factors to calculate the LCM of 51665 and 51680.

LCM(51665,51680) = 51 × 103331 × 25 × 171 × 191
LCM(51665,51680) = 534009440