What is the Least Common Multiple of 684 and 702?
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 684 and 702 is 26676.
LCM(684,702) = 26676
Least Common Multiple of 684 and 702 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 684 and 702, than apply into the LCM equation.
GCF(684,702) = 18
LCM(684,702) = ( 684 × 702) / 18
LCM(684,702) = 480168 / 18
LCM(684,702) = 26676
Least Common Multiple (LCM) of 684 and 702 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 684 and 702. First we will calculate the prime factors of 684 and 702.
Prime Factorization of 684
Prime factors of 684 are 2, 3, 19. Prime factorization of 684 in exponential form is:
684 = 22 × 32 × 191
Prime Factorization of 702
Prime factors of 702 are 2, 3, 13. Prime factorization of 702 in exponential form is:
702 = 21 × 33 × 131
Now multiplying the highest exponent prime factors to calculate the LCM of 684 and 702.
LCM(684,702) = 22 × 33 × 191 × 131
LCM(684,702) = 26676
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