What is the Least Common Multiple of 64400 and 64418?
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 64400 and 64418 is 2074259600.
LCM(64400,64418) = 2074259600
Least Common Multiple of 64400 and 64418 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64400 and 64418, than apply into the LCM equation.
GCF(64400,64418) = 2
LCM(64400,64418) = ( 64400 × 64418) / 2
LCM(64400,64418) = 4148519200 / 2
LCM(64400,64418) = 2074259600
Least Common Multiple (LCM) of 64400 and 64418 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 64400 and 64418. First we will calculate the prime factors of 64400 and 64418.
Prime Factorization of 64400
Prime factors of 64400 are 2, 5, 7, 23. Prime factorization of 64400 in exponential form is:
64400 = 24 × 52 × 71 × 231
Prime Factorization of 64418
Prime factors of 64418 are 2, 31, 1039. Prime factorization of 64418 in exponential form is:
64418 = 21 × 311 × 10391
Now multiplying the highest exponent prime factors to calculate the LCM of 64400 and 64418.
LCM(64400,64418) = 24 × 52 × 71 × 231 × 311 × 10391
LCM(64400,64418) = 2074259600
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