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What is the Least Common Multiple of 38940 and 38951?

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 38940 and 38951 is 137886540.

LCM(38940,38951) = 137886540

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Least Common Multiple of 38940 and 38951 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38940 and 38951, than apply into the LCM equation.

GCF(38940,38951) = 11
LCM(38940,38951) = ( 38940 × 38951) / 11
LCM(38940,38951) = 1516751940 / 11
LCM(38940,38951) = 137886540

Least Common Multiple (LCM) of 38940 and 38951 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38940 and 38951. First we will calculate the prime factors of 38940 and 38951.

Prime Factorization of 38940

Prime factors of 38940 are 2, 3, 5, 11, 59. Prime factorization of 38940 in exponential form is:

38940 = 22 × 31 × 51 × 111 × 591

Prime Factorization of 38951

Prime factors of 38951 are 11, 3541. Prime factorization of 38951 in exponential form is:

38951 = 111 × 35411

Now multiplying the highest exponent prime factors to calculate the LCM of 38940 and 38951.

LCM(38940,38951) = 22 × 31 × 51 × 111 × 591 × 35411
LCM(38940,38951) = 137886540