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What is the Least Common Multiple of 31947 and 31962?

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 31947 and 31962 is 340363338.

LCM(31947,31962) = 340363338

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Least Common Multiple of 31947 and 31962 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31947 and 31962, than apply into the LCM equation.

GCF(31947,31962) = 3
LCM(31947,31962) = ( 31947 × 31962) / 3
LCM(31947,31962) = 1021090014 / 3
LCM(31947,31962) = 340363338

Least Common Multiple (LCM) of 31947 and 31962 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31947 and 31962. First we will calculate the prime factors of 31947 and 31962.

Prime Factorization of 31947

Prime factors of 31947 are 3, 23, 463. Prime factorization of 31947 in exponential form is:

31947 = 31 × 231 × 4631

Prime Factorization of 31962

Prime factors of 31962 are 2, 3, 7, 761. Prime factorization of 31962 in exponential form is:

31962 = 21 × 31 × 71 × 7611

Now multiplying the highest exponent prime factors to calculate the LCM of 31947 and 31962.

LCM(31947,31962) = 31 × 231 × 4631 × 21 × 71 × 7611
LCM(31947,31962) = 340363338