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What is the Least Common Multiple of 47940 and 47949?

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 47940 and 47949 is 766225020.

LCM(47940,47949) = 766225020

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Least Common Multiple of 47940 and 47949 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47940 and 47949, than apply into the LCM equation.

GCF(47940,47949) = 3
LCM(47940,47949) = ( 47940 × 47949) / 3
LCM(47940,47949) = 2298675060 / 3
LCM(47940,47949) = 766225020

Least Common Multiple (LCM) of 47940 and 47949 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47940 and 47949. First we will calculate the prime factors of 47940 and 47949.

Prime Factorization of 47940

Prime factors of 47940 are 2, 3, 5, 17, 47. Prime factorization of 47940 in exponential form is:

47940 = 22 × 31 × 51 × 171 × 471

Prime Factorization of 47949

Prime factors of 47949 are 3, 11, 1453. Prime factorization of 47949 in exponential form is:

47949 = 31 × 111 × 14531

Now multiplying the highest exponent prime factors to calculate the LCM of 47940 and 47949.

LCM(47940,47949) = 22 × 31 × 51 × 171 × 471 × 111 × 14531
LCM(47940,47949) = 766225020