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What is the Least Common Multiple of 72674 and 72678?

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 72674 and 72678 is 2640900486.

LCM(72674,72678) = 2640900486

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Least Common Multiple of 72674 and 72678 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72674 and 72678, than apply into the LCM equation.

GCF(72674,72678) = 2
LCM(72674,72678) = ( 72674 × 72678) / 2
LCM(72674,72678) = 5281800972 / 2
LCM(72674,72678) = 2640900486

Least Common Multiple (LCM) of 72674 and 72678 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72674 and 72678. First we will calculate the prime factors of 72674 and 72678.

Prime Factorization of 72674

Prime factors of 72674 are 2, 7, 29, 179. Prime factorization of 72674 in exponential form is:

72674 = 21 × 71 × 291 × 1791

Prime Factorization of 72678

Prime factors of 72678 are 2, 3, 12113. Prime factorization of 72678 in exponential form is:

72678 = 21 × 31 × 121131

Now multiplying the highest exponent prime factors to calculate the LCM of 72674 and 72678.

LCM(72674,72678) = 21 × 71 × 291 × 1791 × 31 × 121131
LCM(72674,72678) = 2640900486