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What is the Least Common Multiple of 74703 and 74720?

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 74703 and 74720 is 5581808160.

LCM(74703,74720) = 5581808160

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Least Common Multiple of 74703 and 74720 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74703 and 74720, than apply into the LCM equation.

GCF(74703,74720) = 1
LCM(74703,74720) = ( 74703 × 74720) / 1
LCM(74703,74720) = 5581808160 / 1
LCM(74703,74720) = 5581808160

Least Common Multiple (LCM) of 74703 and 74720 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74703 and 74720. First we will calculate the prime factors of 74703 and 74720.

Prime Factorization of 74703

Prime factors of 74703 are 3, 37, 673. Prime factorization of 74703 in exponential form is:

74703 = 31 × 371 × 6731

Prime Factorization of 74720

Prime factors of 74720 are 2, 5, 467. Prime factorization of 74720 in exponential form is:

74720 = 25 × 51 × 4671

Now multiplying the highest exponent prime factors to calculate the LCM of 74703 and 74720.

LCM(74703,74720) = 31 × 371 × 6731 × 25 × 51 × 4671
LCM(74703,74720) = 5581808160