What is the Least Common Multiple of 386 and 394?
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 394 is 76042.
LCM(386,394) = 76042
Least Common Multiple of 386 and 394 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 394, than apply into the LCM equation.
GCF(386,394) = 2
LCM(386,394) = ( 386 × 394) / 2
LCM(386,394) = 152084 / 2
LCM(386,394) = 76042
Least Common Multiple (LCM) of 386 and 394 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 386 and 394. First we will calculate the prime factors of 386 and 394.
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 394
Prime factors of 394 are 2, 197. Prime factorization of 394 in exponential form is:
394 = 21 × 1971
Now multiplying the highest exponent prime factors to calculate the LCM of 386 and 394.
LCM(386,394) = 21 × 1931 × 1971
LCM(386,394) = 76042
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