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What is the Least Common Multiple of 45760 and 45770?

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 45760 and 45770 is 209443520.

LCM(45760,45770) = 209443520

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Least Common Multiple of 45760 and 45770 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 45760 and 45770, than apply into the LCM equation.

GCF(45760,45770) = 10
LCM(45760,45770) = ( 45760 × 45770) / 10
LCM(45760,45770) = 2094435200 / 10
LCM(45760,45770) = 209443520

Least Common Multiple (LCM) of 45760 and 45770 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 45760 and 45770. First we will calculate the prime factors of 45760 and 45770.

Prime Factorization of 45760

Prime factors of 45760 are 2, 5, 11, 13. Prime factorization of 45760 in exponential form is:

45760 = 26 × 51 × 111 × 131

Prime Factorization of 45770

Prime factors of 45770 are 2, 5, 23, 199. Prime factorization of 45770 in exponential form is:

45770 = 21 × 51 × 231 × 1991

Now multiplying the highest exponent prime factors to calculate the LCM of 45760 and 45770.

LCM(45760,45770) = 26 × 51 × 111 × 131 × 231 × 1991
LCM(45760,45770) = 209443520