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What is the Least Common Multiple of 74388 and 74408?

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 74388 and 74408 is 1383765576.

LCM(74388,74408) = 1383765576

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Least Common Multiple of 74388 and 74408 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74388 and 74408, than apply into the LCM equation.

GCF(74388,74408) = 4
LCM(74388,74408) = ( 74388 × 74408) / 4
LCM(74388,74408) = 5535062304 / 4
LCM(74388,74408) = 1383765576

Least Common Multiple (LCM) of 74388 and 74408 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74388 and 74408. First we will calculate the prime factors of 74388 and 74408.

Prime Factorization of 74388

Prime factors of 74388 are 2, 3, 6199. Prime factorization of 74388 in exponential form is:

74388 = 22 × 31 × 61991

Prime Factorization of 74408

Prime factors of 74408 are 2, 71, 131. Prime factorization of 74408 in exponential form is:

74408 = 23 × 711 × 1311

Now multiplying the highest exponent prime factors to calculate the LCM of 74388 and 74408.

LCM(74388,74408) = 23 × 31 × 61991 × 711 × 1311
LCM(74388,74408) = 1383765576