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What is the Least Common Multiple of 43 and 50?

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 43 and 50 is 2150.

LCM(43,50) = 2150

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Least Common Multiple of 43 and 50 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43 and 50, than apply into the LCM equation.

GCF(43,50) = 1
LCM(43,50) = ( 43 × 50) / 1
LCM(43,50) = 2150 / 1
LCM(43,50) = 2150

Least Common Multiple (LCM) of 43 and 50 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43 and 50. First we will calculate the prime factors of 43 and 50.

Prime Factorization of 43

Prime factors of 43 are 43. Prime factorization of 43 in exponential form is:

43 = 431

Prime Factorization of 50

Prime factors of 50 are 2, 5. Prime factorization of 50 in exponential form is:

50 = 21 × 52

Now multiplying the highest exponent prime factors to calculate the LCM of 43 and 50.

LCM(43,50) = 431 × 21 × 52
LCM(43,50) = 2150

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