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What is the Least Common Multiple of 47721 and 47729?

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 47721 and 47729 is 2277675609.

LCM(47721,47729) = 2277675609

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Least Common Multiple of 47721 and 47729 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47721 and 47729, than apply into the LCM equation.

GCF(47721,47729) = 1
LCM(47721,47729) = ( 47721 × 47729) / 1
LCM(47721,47729) = 2277675609 / 1
LCM(47721,47729) = 2277675609

Least Common Multiple (LCM) of 47721 and 47729 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47721 and 47729. First we will calculate the prime factors of 47721 and 47729.

Prime Factorization of 47721

Prime factors of 47721 are 3, 15907. Prime factorization of 47721 in exponential form is:

47721 = 31 × 159071

Prime Factorization of 47729

Prime factors of 47729 are 11, 4339. Prime factorization of 47729 in exponential form is:

47729 = 111 × 43391

Now multiplying the highest exponent prime factors to calculate the LCM of 47721 and 47729.

LCM(47721,47729) = 31 × 159071 × 111 × 43391
LCM(47721,47729) = 2277675609