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What is the Least Common Multiple of 45720 and 45736?

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 45720 and 45736 is 261381240.

LCM(45720,45736) = 261381240

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Least Common Multiple of 45720 and 45736 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 45720 and 45736, than apply into the LCM equation.

GCF(45720,45736) = 8
LCM(45720,45736) = ( 45720 × 45736) / 8
LCM(45720,45736) = 2091049920 / 8
LCM(45720,45736) = 261381240

Least Common Multiple (LCM) of 45720 and 45736 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 45720 and 45736. First we will calculate the prime factors of 45720 and 45736.

Prime Factorization of 45720

Prime factors of 45720 are 2, 3, 5, 127. Prime factorization of 45720 in exponential form is:

45720 = 23 × 32 × 51 × 1271

Prime Factorization of 45736

Prime factors of 45736 are 2, 5717. Prime factorization of 45736 in exponential form is:

45736 = 23 × 57171

Now multiplying the highest exponent prime factors to calculate the LCM of 45720 and 45736.

LCM(45720,45736) = 23 × 32 × 51 × 1271 × 57171
LCM(45720,45736) = 261381240