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What is the Least Common Multiple of 31860 and 31866?

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 31860 and 31866 is 169208460.

LCM(31860,31866) = 169208460

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Least Common Multiple of 31860 and 31866 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31860 and 31866, than apply into the LCM equation.

GCF(31860,31866) = 6
LCM(31860,31866) = ( 31860 × 31866) / 6
LCM(31860,31866) = 1015250760 / 6
LCM(31860,31866) = 169208460

Least Common Multiple (LCM) of 31860 and 31866 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31860 and 31866. First we will calculate the prime factors of 31860 and 31866.

Prime Factorization of 31860

Prime factors of 31860 are 2, 3, 5, 59. Prime factorization of 31860 in exponential form is:

31860 = 22 × 33 × 51 × 591

Prime Factorization of 31866

Prime factors of 31866 are 2, 3, 47, 113. Prime factorization of 31866 in exponential form is:

31866 = 21 × 31 × 471 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 31860 and 31866.

LCM(31860,31866) = 22 × 33 × 51 × 591 × 471 × 1131
LCM(31860,31866) = 169208460