What is the Least Common Multiple of 854 and 865?
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 854 and 865 is 738710.
LCM(854,865) = 738710
Least Common Multiple of 854 and 865 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 854 and 865, than apply into the LCM equation.
GCF(854,865) = 1
LCM(854,865) = ( 854 × 865) / 1
LCM(854,865) = 738710 / 1
LCM(854,865) = 738710
Least Common Multiple (LCM) of 854 and 865 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 854 and 865. First we will calculate the prime factors of 854 and 865.
Prime Factorization of 854
Prime factors of 854 are 2, 7, 61. Prime factorization of 854 in exponential form is:
854 = 21 × 71 × 611
Prime Factorization of 865
Prime factors of 865 are 5, 173. Prime factorization of 865 in exponential form is:
865 = 51 × 1731
Now multiplying the highest exponent prime factors to calculate the LCM of 854 and 865.
LCM(854,865) = 21 × 71 × 611 × 51 × 1731
LCM(854,865) = 738710
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