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What is the Least Common Multiple of 30772 and 30785?

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 30772 and 30785 is 947316020.

LCM(30772,30785) = 947316020

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Least Common Multiple of 30772 and 30785 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30772 and 30785, than apply into the LCM equation.

GCF(30772,30785) = 1
LCM(30772,30785) = ( 30772 × 30785) / 1
LCM(30772,30785) = 947316020 / 1
LCM(30772,30785) = 947316020

Least Common Multiple (LCM) of 30772 and 30785 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30772 and 30785. First we will calculate the prime factors of 30772 and 30785.

Prime Factorization of 30772

Prime factors of 30772 are 2, 7, 157. Prime factorization of 30772 in exponential form is:

30772 = 22 × 72 × 1571

Prime Factorization of 30785

Prime factors of 30785 are 5, 47, 131. Prime factorization of 30785 in exponential form is:

30785 = 51 × 471 × 1311

Now multiplying the highest exponent prime factors to calculate the LCM of 30772 and 30785.

LCM(30772,30785) = 22 × 72 × 1571 × 51 × 471 × 1311
LCM(30772,30785) = 947316020