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What is the Least Common Multiple of 74218 and 74238?

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 74218 and 74238 is 2754897942.

LCM(74218,74238) = 2754897942

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Least Common Multiple of 74218 and 74238 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74218 and 74238, than apply into the LCM equation.

GCF(74218,74238) = 2
LCM(74218,74238) = ( 74218 × 74238) / 2
LCM(74218,74238) = 5509795884 / 2
LCM(74218,74238) = 2754897942

Least Common Multiple (LCM) of 74218 and 74238 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74218 and 74238. First we will calculate the prime factors of 74218 and 74238.

Prime Factorization of 74218

Prime factors of 74218 are 2, 43, 863. Prime factorization of 74218 in exponential form is:

74218 = 21 × 431 × 8631

Prime Factorization of 74238

Prime factors of 74238 are 2, 3, 12373. Prime factorization of 74238 in exponential form is:

74238 = 21 × 31 × 123731

Now multiplying the highest exponent prime factors to calculate the LCM of 74218 and 74238.

LCM(74218,74238) = 21 × 431 × 8631 × 31 × 123731
LCM(74218,74238) = 2754897942