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What is the Least Common Multiple of 31112 and 31120?

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 31112 and 31120 is 121025680.

LCM(31112,31120) = 121025680

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Least Common Multiple of 31112 and 31120 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31112 and 31120, than apply into the LCM equation.

GCF(31112,31120) = 8
LCM(31112,31120) = ( 31112 × 31120) / 8
LCM(31112,31120) = 968205440 / 8
LCM(31112,31120) = 121025680

Least Common Multiple (LCM) of 31112 and 31120 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31112 and 31120. First we will calculate the prime factors of 31112 and 31120.

Prime Factorization of 31112

Prime factors of 31112 are 2, 3889. Prime factorization of 31112 in exponential form is:

31112 = 23 × 38891

Prime Factorization of 31120

Prime factors of 31120 are 2, 5, 389. Prime factorization of 31120 in exponential form is:

31120 = 24 × 51 × 3891

Now multiplying the highest exponent prime factors to calculate the LCM of 31112 and 31120.

LCM(31112,31120) = 24 × 38891 × 51 × 3891
LCM(31112,31120) = 121025680