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What is the Least Common Multiple of 67424 and 67436?

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 67424 and 67436 is 1136701216.

LCM(67424,67436) = 1136701216

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Least Common Multiple of 67424 and 67436 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67424 and 67436, than apply into the LCM equation.

GCF(67424,67436) = 4
LCM(67424,67436) = ( 67424 × 67436) / 4
LCM(67424,67436) = 4546804864 / 4
LCM(67424,67436) = 1136701216

Least Common Multiple (LCM) of 67424 and 67436 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67424 and 67436. First we will calculate the prime factors of 67424 and 67436.

Prime Factorization of 67424

Prime factors of 67424 are 2, 7, 43. Prime factorization of 67424 in exponential form is:

67424 = 25 × 72 × 431

Prime Factorization of 67436

Prime factors of 67436 are 2, 23, 733. Prime factorization of 67436 in exponential form is:

67436 = 22 × 231 × 7331

Now multiplying the highest exponent prime factors to calculate the LCM of 67424 and 67436.

LCM(67424,67436) = 25 × 72 × 431 × 231 × 7331
LCM(67424,67436) = 1136701216