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What is the Least Common Multiple of 31862 and 31872?

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 31862 and 31872 is 507752832.

LCM(31862,31872) = 507752832

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Least Common Multiple of 31862 and 31872 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31862 and 31872, than apply into the LCM equation.

GCF(31862,31872) = 2
LCM(31862,31872) = ( 31862 × 31872) / 2
LCM(31862,31872) = 1015505664 / 2
LCM(31862,31872) = 507752832

Least Common Multiple (LCM) of 31862 and 31872 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31862 and 31872. First we will calculate the prime factors of 31862 and 31872.

Prime Factorization of 31862

Prime factors of 31862 are 2, 89, 179. Prime factorization of 31862 in exponential form is:

31862 = 21 × 891 × 1791

Prime Factorization of 31872

Prime factors of 31872 are 2, 3, 83. Prime factorization of 31872 in exponential form is:

31872 = 27 × 31 × 831

Now multiplying the highest exponent prime factors to calculate the LCM of 31862 and 31872.

LCM(31862,31872) = 27 × 891 × 1791 × 31 × 831
LCM(31862,31872) = 507752832