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What is the Least Common Multiple of 39738 and 39748?

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 39738 and 39748 is 789753012.

LCM(39738,39748) = 789753012

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Least Common Multiple of 39738 and 39748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39738 and 39748, than apply into the LCM equation.

GCF(39738,39748) = 2
LCM(39738,39748) = ( 39738 × 39748) / 2
LCM(39738,39748) = 1579506024 / 2
LCM(39738,39748) = 789753012

Least Common Multiple (LCM) of 39738 and 39748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39738 and 39748. First we will calculate the prime factors of 39738 and 39748.

Prime Factorization of 39738

Prime factors of 39738 are 2, 3, 37, 179. Prime factorization of 39738 in exponential form is:

39738 = 21 × 31 × 371 × 1791

Prime Factorization of 39748

Prime factors of 39748 are 2, 19, 523. Prime factorization of 39748 in exponential form is:

39748 = 22 × 191 × 5231

Now multiplying the highest exponent prime factors to calculate the LCM of 39738 and 39748.

LCM(39738,39748) = 22 × 31 × 371 × 1791 × 191 × 5231
LCM(39738,39748) = 789753012