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What is the Least Common Multiple of 75762 and 75780?

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 75762 and 75780 is 318958020.

LCM(75762,75780) = 318958020

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Least Common Multiple of 75762 and 75780 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75762 and 75780, than apply into the LCM equation.

GCF(75762,75780) = 18
LCM(75762,75780) = ( 75762 × 75780) / 18
LCM(75762,75780) = 5741244360 / 18
LCM(75762,75780) = 318958020

Least Common Multiple (LCM) of 75762 and 75780 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75762 and 75780. First we will calculate the prime factors of 75762 and 75780.

Prime Factorization of 75762

Prime factors of 75762 are 2, 3, 23, 61. Prime factorization of 75762 in exponential form is:

75762 = 21 × 33 × 231 × 611

Prime Factorization of 75780

Prime factors of 75780 are 2, 3, 5, 421. Prime factorization of 75780 in exponential form is:

75780 = 22 × 32 × 51 × 4211

Now multiplying the highest exponent prime factors to calculate the LCM of 75762 and 75780.

LCM(75762,75780) = 22 × 33 × 231 × 611 × 51 × 4211
LCM(75762,75780) = 318958020