What is the Least Common Multiple of 665 and 683?
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 665 and 683 is 454195.
LCM(665,683) = 454195
Least Common Multiple of 665 and 683 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 665 and 683, than apply into the LCM equation.
GCF(665,683) = 1
LCM(665,683) = ( 665 × 683) / 1
LCM(665,683) = 454195 / 1
LCM(665,683) = 454195
Least Common Multiple (LCM) of 665 and 683 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 665 and 683. First we will calculate the prime factors of 665 and 683.
Prime Factorization of 665
Prime factors of 665 are 5, 7, 19. Prime factorization of 665 in exponential form is:
665 = 51 × 71 × 191
Prime Factorization of 683
Prime factors of 683 are 683. Prime factorization of 683 in exponential form is:
683 = 6831
Now multiplying the highest exponent prime factors to calculate the LCM of 665 and 683.
LCM(665,683) = 51 × 71 × 191 × 6831
LCM(665,683) = 454195
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