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What is the Least Common Multiple of 23940 and 23955?

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 23940 and 23955 is 38232180.

LCM(23940,23955) = 38232180

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Least Common Multiple of 23940 and 23955 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 23940 and 23955, than apply into the LCM equation.

GCF(23940,23955) = 15
LCM(23940,23955) = ( 23940 × 23955) / 15
LCM(23940,23955) = 573482700 / 15
LCM(23940,23955) = 38232180

Least Common Multiple (LCM) of 23940 and 23955 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 23940 and 23955. First we will calculate the prime factors of 23940 and 23955.

Prime Factorization of 23940

Prime factors of 23940 are 2, 3, 5, 7, 19. Prime factorization of 23940 in exponential form is:

23940 = 22 × 32 × 51 × 71 × 191

Prime Factorization of 23955

Prime factors of 23955 are 3, 5, 1597. Prime factorization of 23955 in exponential form is:

23955 = 31 × 51 × 15971

Now multiplying the highest exponent prime factors to calculate the LCM of 23940 and 23955.

LCM(23940,23955) = 22 × 32 × 51 × 71 × 191 × 15971
LCM(23940,23955) = 38232180