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What is the Least Common Multiple of 31445 and 31464?

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 31445 and 31464 is 52072920.

LCM(31445,31464) = 52072920

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Least Common Multiple of 31445 and 31464 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31445 and 31464, than apply into the LCM equation.

GCF(31445,31464) = 19
LCM(31445,31464) = ( 31445 × 31464) / 19
LCM(31445,31464) = 989385480 / 19
LCM(31445,31464) = 52072920

Least Common Multiple (LCM) of 31445 and 31464 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31445 and 31464. First we will calculate the prime factors of 31445 and 31464.

Prime Factorization of 31445

Prime factors of 31445 are 5, 19, 331. Prime factorization of 31445 in exponential form is:

31445 = 51 × 191 × 3311

Prime Factorization of 31464

Prime factors of 31464 are 2, 3, 19, 23. Prime factorization of 31464 in exponential form is:

31464 = 23 × 32 × 191 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 31445 and 31464.

LCM(31445,31464) = 51 × 191 × 3311 × 23 × 32 × 231
LCM(31445,31464) = 52072920