What is the Least Common Multiple of 386 and 395?
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 386 and 395 is 152470.
LCM(386,395) = 152470
Least Common Multiple of 386 and 395 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 386 and 395, than apply into the LCM equation.
GCF(386,395) = 1
LCM(386,395) = ( 386 × 395) / 1
LCM(386,395) = 152470 / 1
LCM(386,395) = 152470
Least Common Multiple (LCM) of 386 and 395 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 386 and 395. First we will calculate the prime factors of 386 and 395.
Prime Factorization of 386
Prime factors of 386 are 2, 193. Prime factorization of 386 in exponential form is:
386 = 21 × 1931
Prime Factorization of 395
Prime factors of 395 are 5, 79. Prime factorization of 395 in exponential form is:
395 = 51 × 791
Now multiplying the highest exponent prime factors to calculate the LCM of 386 and 395.
LCM(386,395) = 21 × 1931 × 51 × 791
LCM(386,395) = 152470
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