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What is the Least Common Multiple of 1080 and 1088?

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 1080 and 1088 is 146880.

LCM(1080,1088) = 146880

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Least Common Multiple of 1080 and 1088 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1080 and 1088, than apply into the LCM equation.

GCF(1080,1088) = 8
LCM(1080,1088) = ( 1080 × 1088) / 8
LCM(1080,1088) = 1175040 / 8
LCM(1080,1088) = 146880

Least Common Multiple (LCM) of 1080 and 1088 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1080 and 1088. First we will calculate the prime factors of 1080 and 1088.

Prime Factorization of 1080

Prime factors of 1080 are 2, 3, 5. Prime factorization of 1080 in exponential form is:

1080 = 23 × 33 × 51

Prime Factorization of 1088

Prime factors of 1088 are 2, 17. Prime factorization of 1088 in exponential form is:

1088 = 26 × 171

Now multiplying the highest exponent prime factors to calculate the LCM of 1080 and 1088.

LCM(1080,1088) = 26 × 33 × 51 × 171
LCM(1080,1088) = 146880