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What is the Least Common Multiple of 68717 and 68728?

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 68717 and 68728 is 429343816.

LCM(68717,68728) = 429343816

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Least Common Multiple of 68717 and 68728 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68717 and 68728, than apply into the LCM equation.

GCF(68717,68728) = 11
LCM(68717,68728) = ( 68717 × 68728) / 11
LCM(68717,68728) = 4722781976 / 11
LCM(68717,68728) = 429343816

Least Common Multiple (LCM) of 68717 and 68728 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68717 and 68728. First we will calculate the prime factors of 68717 and 68728.

Prime Factorization of 68717

Prime factors of 68717 are 11, 6247. Prime factorization of 68717 in exponential form is:

68717 = 111 × 62471

Prime Factorization of 68728

Prime factors of 68728 are 2, 11, 71. Prime factorization of 68728 in exponential form is:

68728 = 23 × 112 × 711

Now multiplying the highest exponent prime factors to calculate the LCM of 68717 and 68728.

LCM(68717,68728) = 112 × 62471 × 23 × 711
LCM(68717,68728) = 429343816