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What is the Least Common Multiple of 2812 and 2816?

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 2812 and 2816 is 1979648.

LCM(2812,2816) = 1979648

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Least Common Multiple of 2812 and 2816 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2812 and 2816, than apply into the LCM equation.

GCF(2812,2816) = 4
LCM(2812,2816) = ( 2812 × 2816) / 4
LCM(2812,2816) = 7918592 / 4
LCM(2812,2816) = 1979648

Least Common Multiple (LCM) of 2812 and 2816 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2812 and 2816. First we will calculate the prime factors of 2812 and 2816.

Prime Factorization of 2812

Prime factors of 2812 are 2, 19, 37. Prime factorization of 2812 in exponential form is:

2812 = 22 × 191 × 371

Prime Factorization of 2816

Prime factors of 2816 are 2, 11. Prime factorization of 2816 in exponential form is:

2816 = 28 × 111

Now multiplying the highest exponent prime factors to calculate the LCM of 2812 and 2816.

LCM(2812,2816) = 28 × 191 × 371 × 111
LCM(2812,2816) = 1979648