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What is the Least Common Multiple of 68530 and 68545?

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 68530 and 68545 is 939477770.

LCM(68530,68545) = 939477770

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Least Common Multiple of 68530 and 68545 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68530 and 68545, than apply into the LCM equation.

GCF(68530,68545) = 5
LCM(68530,68545) = ( 68530 × 68545) / 5
LCM(68530,68545) = 4697388850 / 5
LCM(68530,68545) = 939477770

Least Common Multiple (LCM) of 68530 and 68545 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68530 and 68545. First we will calculate the prime factors of 68530 and 68545.

Prime Factorization of 68530

Prime factors of 68530 are 2, 5, 7, 11, 89. Prime factorization of 68530 in exponential form is:

68530 = 21 × 51 × 71 × 111 × 891

Prime Factorization of 68545

Prime factors of 68545 are 5, 13709. Prime factorization of 68545 in exponential form is:

68545 = 51 × 137091

Now multiplying the highest exponent prime factors to calculate the LCM of 68530 and 68545.

LCM(68530,68545) = 21 × 51 × 71 × 111 × 891 × 137091
LCM(68530,68545) = 939477770