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What is the Least Common Multiple of 31602 and 31620?

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 31602 and 31620 is 166542540.

LCM(31602,31620) = 166542540

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Least Common Multiple of 31602 and 31620 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31602 and 31620, than apply into the LCM equation.

GCF(31602,31620) = 6
LCM(31602,31620) = ( 31602 × 31620) / 6
LCM(31602,31620) = 999255240 / 6
LCM(31602,31620) = 166542540

Least Common Multiple (LCM) of 31602 and 31620 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31602 and 31620. First we will calculate the prime factors of 31602 and 31620.

Prime Factorization of 31602

Prime factors of 31602 are 2, 3, 23, 229. Prime factorization of 31602 in exponential form is:

31602 = 21 × 31 × 231 × 2291

Prime Factorization of 31620

Prime factors of 31620 are 2, 3, 5, 17, 31. Prime factorization of 31620 in exponential form is:

31620 = 22 × 31 × 51 × 171 × 311

Now multiplying the highest exponent prime factors to calculate the LCM of 31602 and 31620.

LCM(31602,31620) = 22 × 31 × 231 × 2291 × 51 × 171 × 311
LCM(31602,31620) = 166542540