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What is the Least Common Multiple of 38731 and 38742?

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 38731 and 38742 is 136410582.

LCM(38731,38742) = 136410582

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Least Common Multiple of 38731 and 38742 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 38731 and 38742, than apply into the LCM equation.

GCF(38731,38742) = 11
LCM(38731,38742) = ( 38731 × 38742) / 11
LCM(38731,38742) = 1500516402 / 11
LCM(38731,38742) = 136410582

Least Common Multiple (LCM) of 38731 and 38742 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 38731 and 38742. First we will calculate the prime factors of 38731 and 38742.

Prime Factorization of 38731

Prime factors of 38731 are 7, 11, 503. Prime factorization of 38731 in exponential form is:

38731 = 71 × 111 × 5031

Prime Factorization of 38742

Prime factors of 38742 are 2, 3, 11, 587. Prime factorization of 38742 in exponential form is:

38742 = 21 × 31 × 111 × 5871

Now multiplying the highest exponent prime factors to calculate the LCM of 38731 and 38742.

LCM(38731,38742) = 71 × 111 × 5031 × 21 × 31 × 5871
LCM(38731,38742) = 136410582