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What is the Least Common Multiple of 67404 and 67408?

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 67404 and 67408 is 1135892208.

LCM(67404,67408) = 1135892208

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Least Common Multiple of 67404 and 67408 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67404 and 67408, than apply into the LCM equation.

GCF(67404,67408) = 4
LCM(67404,67408) = ( 67404 × 67408) / 4
LCM(67404,67408) = 4543568832 / 4
LCM(67404,67408) = 1135892208

Least Common Multiple (LCM) of 67404 and 67408 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67404 and 67408. First we will calculate the prime factors of 67404 and 67408.

Prime Factorization of 67404

Prime factors of 67404 are 2, 3, 41, 137. Prime factorization of 67404 in exponential form is:

67404 = 22 × 31 × 411 × 1371

Prime Factorization of 67408

Prime factors of 67408 are 2, 11, 383. Prime factorization of 67408 in exponential form is:

67408 = 24 × 111 × 3831

Now multiplying the highest exponent prime factors to calculate the LCM of 67404 and 67408.

LCM(67404,67408) = 24 × 31 × 411 × 1371 × 111 × 3831
LCM(67404,67408) = 1135892208