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What is the Least Common Multiple of 3932 and 3940?

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 3932 and 3940 is 3873020.

LCM(3932,3940) = 3873020

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Least Common Multiple of 3932 and 3940 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3932 and 3940, than apply into the LCM equation.

GCF(3932,3940) = 4
LCM(3932,3940) = ( 3932 × 3940) / 4
LCM(3932,3940) = 15492080 / 4
LCM(3932,3940) = 3873020

Least Common Multiple (LCM) of 3932 and 3940 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3932 and 3940. First we will calculate the prime factors of 3932 and 3940.

Prime Factorization of 3932

Prime factors of 3932 are 2, 983. Prime factorization of 3932 in exponential form is:

3932 = 22 × 9831

Prime Factorization of 3940

Prime factors of 3940 are 2, 5, 197. Prime factorization of 3940 in exponential form is:

3940 = 22 × 51 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 3932 and 3940.

LCM(3932,3940) = 22 × 9831 × 51 × 1971
LCM(3932,3940) = 3873020