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What is the Least Common Multiple of 74909 and 74928?

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 74909 and 74928 is 5612781552.

LCM(74909,74928) = 5612781552

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Least Common Multiple of 74909 and 74928 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74909 and 74928, than apply into the LCM equation.

GCF(74909,74928) = 1
LCM(74909,74928) = ( 74909 × 74928) / 1
LCM(74909,74928) = 5612781552 / 1
LCM(74909,74928) = 5612781552

Least Common Multiple (LCM) of 74909 and 74928 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74909 and 74928. First we will calculate the prime factors of 74909 and 74928.

Prime Factorization of 74909

Prime factors of 74909 are 173, 433. Prime factorization of 74909 in exponential form is:

74909 = 1731 × 4331

Prime Factorization of 74928

Prime factors of 74928 are 2, 3, 7, 223. Prime factorization of 74928 in exponential form is:

74928 = 24 × 31 × 71 × 2231

Now multiplying the highest exponent prime factors to calculate the LCM of 74909 and 74928.

LCM(74909,74928) = 1731 × 4331 × 24 × 31 × 71 × 2231
LCM(74909,74928) = 5612781552