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What is the Least Common Multiple of 39908 and 39924?

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 39908 and 39924 is 398321748.

LCM(39908,39924) = 398321748

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Least Common Multiple of 39908 and 39924 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39908 and 39924, than apply into the LCM equation.

GCF(39908,39924) = 4
LCM(39908,39924) = ( 39908 × 39924) / 4
LCM(39908,39924) = 1593286992 / 4
LCM(39908,39924) = 398321748

Least Common Multiple (LCM) of 39908 and 39924 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39908 and 39924. First we will calculate the prime factors of 39908 and 39924.

Prime Factorization of 39908

Prime factors of 39908 are 2, 11, 907. Prime factorization of 39908 in exponential form is:

39908 = 22 × 111 × 9071

Prime Factorization of 39924

Prime factors of 39924 are 2, 3, 1109. Prime factorization of 39924 in exponential form is:

39924 = 22 × 32 × 11091

Now multiplying the highest exponent prime factors to calculate the LCM of 39908 and 39924.

LCM(39908,39924) = 22 × 111 × 9071 × 32 × 11091
LCM(39908,39924) = 398321748