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What is the Least Common Multiple of 31930 and 31939?

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 31930 and 31939 is 1019812270.

LCM(31930,31939) = 1019812270

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Least Common Multiple of 31930 and 31939 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31930 and 31939, than apply into the LCM equation.

GCF(31930,31939) = 1
LCM(31930,31939) = ( 31930 × 31939) / 1
LCM(31930,31939) = 1019812270 / 1
LCM(31930,31939) = 1019812270

Least Common Multiple (LCM) of 31930 and 31939 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31930 and 31939. First we will calculate the prime factors of 31930 and 31939.

Prime Factorization of 31930

Prime factors of 31930 are 2, 5, 31, 103. Prime factorization of 31930 in exponential form is:

31930 = 21 × 51 × 311 × 1031

Prime Factorization of 31939

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

31939 = 191 × 412

Now multiplying the highest exponent prime factors to calculate the LCM of 31930 and 31939.

LCM(31930,31939) = 21 × 51 × 311 × 1031 × 191 × 412
LCM(31930,31939) = 1019812270