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What is the Least Common Multiple of 67875 and 67880?

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 67875 and 67880 is 921471000.

LCM(67875,67880) = 921471000

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Least Common Multiple of 67875 and 67880 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67875 and 67880, than apply into the LCM equation.

GCF(67875,67880) = 5
LCM(67875,67880) = ( 67875 × 67880) / 5
LCM(67875,67880) = 4607355000 / 5
LCM(67875,67880) = 921471000

Least Common Multiple (LCM) of 67875 and 67880 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67875 and 67880. First we will calculate the prime factors of 67875 and 67880.

Prime Factorization of 67875

Prime factors of 67875 are 3, 5, 181. Prime factorization of 67875 in exponential form is:

67875 = 31 × 53 × 1811

Prime Factorization of 67880

Prime factors of 67880 are 2, 5, 1697. Prime factorization of 67880 in exponential form is:

67880 = 23 × 51 × 16971

Now multiplying the highest exponent prime factors to calculate the LCM of 67875 and 67880.

LCM(67875,67880) = 31 × 53 × 1811 × 23 × 16971
LCM(67875,67880) = 921471000