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What is the Least Common Multiple of 75121 and 75140?

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 75121 and 75140 is 5644591940.

LCM(75121,75140) = 5644591940

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Least Common Multiple of 75121 and 75140 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75121 and 75140, than apply into the LCM equation.

GCF(75121,75140) = 1
LCM(75121,75140) = ( 75121 × 75140) / 1
LCM(75121,75140) = 5644591940 / 1
LCM(75121,75140) = 5644591940

Least Common Multiple (LCM) of 75121 and 75140 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75121 and 75140. First we will calculate the prime factors of 75121 and 75140.

Prime Factorization of 75121

Prime factors of 75121 are 43, 1747. Prime factorization of 75121 in exponential form is:

75121 = 431 × 17471

Prime Factorization of 75140

Prime factors of 75140 are 2, 5, 13, 17. Prime factorization of 75140 in exponential form is:

75140 = 22 × 51 × 131 × 172

Now multiplying the highest exponent prime factors to calculate the LCM of 75121 and 75140.

LCM(75121,75140) = 431 × 17471 × 22 × 51 × 131 × 172
LCM(75121,75140) = 5644591940