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What is the Least Common Multiple of 79729 and 79740?

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 79729 and 79740 is 6357590460.

LCM(79729,79740) = 6357590460

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Least Common Multiple of 79729 and 79740 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79729 and 79740, than apply into the LCM equation.

GCF(79729,79740) = 1
LCM(79729,79740) = ( 79729 × 79740) / 1
LCM(79729,79740) = 6357590460 / 1
LCM(79729,79740) = 6357590460

Least Common Multiple (LCM) of 79729 and 79740 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79729 and 79740. First we will calculate the prime factors of 79729 and 79740.

Prime Factorization of 79729

Prime factors of 79729 are 13, 6133. Prime factorization of 79729 in exponential form is:

79729 = 131 × 61331

Prime Factorization of 79740

Prime factors of 79740 are 2, 3, 5, 443. Prime factorization of 79740 in exponential form is:

79740 = 22 × 32 × 51 × 4431

Now multiplying the highest exponent prime factors to calculate the LCM of 79729 and 79740.

LCM(79729,79740) = 131 × 61331 × 22 × 32 × 51 × 4431
LCM(79729,79740) = 6357590460