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What is the Least Common Multiple of 4119 and 4128?

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 4119 and 4128 is 5667744.

LCM(4119,4128) = 5667744

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Least Common Multiple of 4119 and 4128 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4119 and 4128, than apply into the LCM equation.

GCF(4119,4128) = 3
LCM(4119,4128) = ( 4119 × 4128) / 3
LCM(4119,4128) = 17003232 / 3
LCM(4119,4128) = 5667744

Least Common Multiple (LCM) of 4119 and 4128 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4119 and 4128. First we will calculate the prime factors of 4119 and 4128.

Prime Factorization of 4119

Prime factors of 4119 are 3, 1373. Prime factorization of 4119 in exponential form is:

4119 = 31 × 13731

Prime Factorization of 4128

Prime factors of 4128 are 2, 3, 43. Prime factorization of 4128 in exponential form is:

4128 = 25 × 31 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 4119 and 4128.

LCM(4119,4128) = 31 × 13731 × 25 × 431
LCM(4119,4128) = 5667744