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What is the Least Common Multiple of 2128 and 2141?

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 2128 and 2141 is 4556048.

LCM(2128,2141) = 4556048

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Least Common Multiple of 2128 and 2141 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 2128 and 2141, than apply into the LCM equation.

GCF(2128,2141) = 1
LCM(2128,2141) = ( 2128 × 2141) / 1
LCM(2128,2141) = 4556048 / 1
LCM(2128,2141) = 4556048

Least Common Multiple (LCM) of 2128 and 2141 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 2128 and 2141. First we will calculate the prime factors of 2128 and 2141.

Prime Factorization of 2128

Prime factors of 2128 are 2, 7, 19. Prime factorization of 2128 in exponential form is:

2128 = 24 × 71 × 191

Prime Factorization of 2141

Prime factors of 2141 are 2141. Prime factorization of 2141 in exponential form is:

2141 = 21411

Now multiplying the highest exponent prime factors to calculate the LCM of 2128 and 2141.

LCM(2128,2141) = 24 × 71 × 191 × 21411
LCM(2128,2141) = 4556048