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What is the Least Common Multiple of 31939 and 31955?

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 31939 and 31955 is 1020610745.

LCM(31939,31955) = 1020610745

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Least Common Multiple of 31939 and 31955 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31939 and 31955, than apply into the LCM equation.

GCF(31939,31955) = 1
LCM(31939,31955) = ( 31939 × 31955) / 1
LCM(31939,31955) = 1020610745 / 1
LCM(31939,31955) = 1020610745

Least Common Multiple (LCM) of 31939 and 31955 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31939 and 31955. First we will calculate the prime factors of 31939 and 31955.

Prime Factorization of 31939

Prime factors of 31939 are 19, 41. Prime factorization of 31939 in exponential form is:

31939 = 191 × 412

Prime Factorization of 31955

Prime factors of 31955 are 5, 7, 11, 83. Prime factorization of 31955 in exponential form is:

31955 = 51 × 71 × 111 × 831

Now multiplying the highest exponent prime factors to calculate the LCM of 31939 and 31955.

LCM(31939,31955) = 191 × 412 × 51 × 71 × 111 × 831
LCM(31939,31955) = 1020610745