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What is the Least Common Multiple of 16 and 24?

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 16 and 24 is 48.

LCM(16,24) = 48

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Least Common Multiple of 16 and 24 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16 and 24, than apply into the LCM equation.

GCF(16,24) = 8
LCM(16,24) = ( 16 × 24) / 8
LCM(16,24) = 384 / 8
LCM(16,24) = 48

Least Common Multiple (LCM) of 16 and 24 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16 and 24. First we will calculate the prime factors of 16 and 24.

Prime Factorization of 16

Prime factors of 16 are 2. Prime factorization of 16 in exponential form is:

16 = 24

Prime Factorization of 24

Prime factors of 24 are 2, 3. Prime factorization of 24 in exponential form is:

24 = 23 × 31

Now multiplying the highest exponent prime factors to calculate the LCM of 16 and 24.

LCM(16,24) = 24 × 31
LCM(16,24) = 48

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vamshika 2020-07-03 23:41:45

How to find LCM of the following number using prime factorization method

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