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What is the Least Common Multiple of 31521 and 31532?

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 31521 and 31532 is 993920172.

LCM(31521,31532) = 993920172

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Least Common Multiple of 31521 and 31532 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31521 and 31532, than apply into the LCM equation.

GCF(31521,31532) = 1
LCM(31521,31532) = ( 31521 × 31532) / 1
LCM(31521,31532) = 993920172 / 1
LCM(31521,31532) = 993920172

Least Common Multiple (LCM) of 31521 and 31532 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31521 and 31532. First we will calculate the prime factors of 31521 and 31532.

Prime Factorization of 31521

Prime factors of 31521 are 3, 7, 19, 79. Prime factorization of 31521 in exponential form is:

31521 = 31 × 71 × 191 × 791

Prime Factorization of 31532

Prime factors of 31532 are 2, 7883. Prime factorization of 31532 in exponential form is:

31532 = 22 × 78831

Now multiplying the highest exponent prime factors to calculate the LCM of 31521 and 31532.

LCM(31521,31532) = 31 × 71 × 191 × 791 × 22 × 78831
LCM(31521,31532) = 993920172