What is the Least Common Multiple of 118 and 123?
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 118 and 123 is 14514.
LCM(118,123) = 14514
Least Common Multiple of 118 and 123 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 118 and 123, than apply into the LCM equation.
GCF(118,123) = 1
LCM(118,123) = ( 118 × 123) / 1
LCM(118,123) = 14514 / 1
LCM(118,123) = 14514
Least Common Multiple (LCM) of 118 and 123 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 118 and 123. First we will calculate the prime factors of 118 and 123.
Prime Factorization of 118
Prime factors of 118 are 2, 59. Prime factorization of 118 in exponential form is:
118 = 21 × 591
Prime Factorization of 123
Prime factors of 123 are 3, 41. Prime factorization of 123 in exponential form is:
123 = 31 × 411
Now multiplying the highest exponent prime factors to calculate the LCM of 118 and 123.
LCM(118,123) = 21 × 591 × 31 × 411
LCM(118,123) = 14514
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