What is the Least Common Multiple of 682 and 698?
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 682 and 698 is 238018.
LCM(682,698) = 238018
Least Common Multiple of 682 and 698 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 682 and 698, than apply into the LCM equation.
GCF(682,698) = 2
LCM(682,698) = ( 682 × 698) / 2
LCM(682,698) = 476036 / 2
LCM(682,698) = 238018
Least Common Multiple (LCM) of 682 and 698 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 682 and 698. First we will calculate the prime factors of 682 and 698.
Prime Factorization of 682
Prime factors of 682 are 2, 11, 31. Prime factorization of 682 in exponential form is:
682 = 21 × 111 × 311
Prime Factorization of 698
Prime factors of 698 are 2, 349. Prime factorization of 698 in exponential form is:
698 = 21 × 3491
Now multiplying the highest exponent prime factors to calculate the LCM of 682 and 698.
LCM(682,698) = 21 × 111 × 311 × 3491
LCM(682,698) = 238018
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