What is the Least Common Multiple of 68685 and 68691?
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 68685 and 68691 is 1572680445.
LCM(68685,68691) = 1572680445
Least Common Multiple of 68685 and 68691 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68685 and 68691, than apply into the LCM equation.
GCF(68685,68691) = 3
LCM(68685,68691) = ( 68685 × 68691) / 3
LCM(68685,68691) = 4718041335 / 3
LCM(68685,68691) = 1572680445
Least Common Multiple (LCM) of 68685 and 68691 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 68685 and 68691. First we will calculate the prime factors of 68685 and 68691.
Prime Factorization of 68685
Prime factors of 68685 are 3, 5, 19, 241. Prime factorization of 68685 in exponential form is:
68685 = 31 × 51 × 191 × 2411
Prime Factorization of 68691
Prime factors of 68691 are 3, 7, 3271. Prime factorization of 68691 in exponential form is:
68691 = 31 × 71 × 32711
Now multiplying the highest exponent prime factors to calculate the LCM of 68685 and 68691.
LCM(68685,68691) = 31 × 51 × 191 × 2411 × 71 × 32711
LCM(68685,68691) = 1572680445
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