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What is the Least Common Multiple of 30986 and 31006?

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 30986 and 31006 is 480375958.

LCM(30986,31006) = 480375958

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Least Common Multiple of 30986 and 31006 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30986 and 31006, than apply into the LCM equation.

GCF(30986,31006) = 2
LCM(30986,31006) = ( 30986 × 31006) / 2
LCM(30986,31006) = 960751916 / 2
LCM(30986,31006) = 480375958

Least Common Multiple (LCM) of 30986 and 31006 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30986 and 31006. First we will calculate the prime factors of 30986 and 31006.

Prime Factorization of 30986

Prime factors of 30986 are 2, 15493. Prime factorization of 30986 in exponential form is:

30986 = 21 × 154931

Prime Factorization of 31006

Prime factors of 31006 are 2, 37, 419. Prime factorization of 31006 in exponential form is:

31006 = 21 × 371 × 4191

Now multiplying the highest exponent prime factors to calculate the LCM of 30986 and 31006.

LCM(30986,31006) = 21 × 154931 × 371 × 4191
LCM(30986,31006) = 480375958