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What is the Least Common Multiple of 72704 and 72709?

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 72704 and 72709 is 5286235136.

LCM(72704,72709) = 5286235136

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Least Common Multiple of 72704 and 72709 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72704 and 72709, than apply into the LCM equation.

GCF(72704,72709) = 1
LCM(72704,72709) = ( 72704 × 72709) / 1
LCM(72704,72709) = 5286235136 / 1
LCM(72704,72709) = 5286235136

Least Common Multiple (LCM) of 72704 and 72709 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72704 and 72709. First we will calculate the prime factors of 72704 and 72709.

Prime Factorization of 72704

Prime factors of 72704 are 2, 71. Prime factorization of 72704 in exponential form is:

72704 = 210 × 711

Prime Factorization of 72709

Prime factors of 72709 are 7, 13, 17, 47. Prime factorization of 72709 in exponential form is:

72709 = 71 × 131 × 171 × 471

Now multiplying the highest exponent prime factors to calculate the LCM of 72704 and 72709.

LCM(72704,72709) = 210 × 711 × 71 × 131 × 171 × 471
LCM(72704,72709) = 5286235136