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What is the Least Common Multiple of 31958 and 31971?

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 31958 and 31971 is 1021729218.

LCM(31958,31971) = 1021729218

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Least Common Multiple of 31958 and 31971 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31958 and 31971, than apply into the LCM equation.

GCF(31958,31971) = 1
LCM(31958,31971) = ( 31958 × 31971) / 1
LCM(31958,31971) = 1021729218 / 1
LCM(31958,31971) = 1021729218

Least Common Multiple (LCM) of 31958 and 31971 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31958 and 31971. First we will calculate the prime factors of 31958 and 31971.

Prime Factorization of 31958

Prime factors of 31958 are 2, 19, 29. Prime factorization of 31958 in exponential form is:

31958 = 21 × 191 × 292

Prime Factorization of 31971

Prime factors of 31971 are 3, 10657. Prime factorization of 31971 in exponential form is:

31971 = 31 × 106571

Now multiplying the highest exponent prime factors to calculate the LCM of 31958 and 31971.

LCM(31958,31971) = 21 × 191 × 292 × 31 × 106571
LCM(31958,31971) = 1021729218