What is the Least Common Multiple of 846 and 864?
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 846 and 864 is 40608.
LCM(846,864) = 40608
Least Common Multiple of 846 and 864 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 846 and 864, than apply into the LCM equation.
GCF(846,864) = 18
LCM(846,864) = ( 846 × 864) / 18
LCM(846,864) = 730944 / 18
LCM(846,864) = 40608
Least Common Multiple (LCM) of 846 and 864 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 846 and 864. First we will calculate the prime factors of 846 and 864.
Prime Factorization of 846
Prime factors of 846 are 2, 3, 47. Prime factorization of 846 in exponential form is:
846 = 21 × 32 × 471
Prime Factorization of 864
Prime factors of 864 are 2, 3. Prime factorization of 864 in exponential form is:
864 = 25 × 33
Now multiplying the highest exponent prime factors to calculate the LCM of 846 and 864.
LCM(846,864) = 25 × 33 × 471
LCM(846,864) = 40608
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