GCF and LCM Calculator Logo

What is the Least Common Multiple of 7686 and 7690?

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 7686 and 7690 is 29552670.

LCM(7686,7690) = 29552670

LCM Calculator and
and

Least Common Multiple of 7686 and 7690 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7686 and 7690, than apply into the LCM equation.

GCF(7686,7690) = 2
LCM(7686,7690) = ( 7686 × 7690) / 2
LCM(7686,7690) = 59105340 / 2
LCM(7686,7690) = 29552670

Least Common Multiple (LCM) of 7686 and 7690 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7686 and 7690. First we will calculate the prime factors of 7686 and 7690.

Prime Factorization of 7686

Prime factors of 7686 are 2, 3, 7, 61. Prime factorization of 7686 in exponential form is:

7686 = 21 × 32 × 71 × 611

Prime Factorization of 7690

Prime factors of 7690 are 2, 5, 769. Prime factorization of 7690 in exponential form is:

7690 = 21 × 51 × 7691

Now multiplying the highest exponent prime factors to calculate the LCM of 7686 and 7690.

LCM(7686,7690) = 21 × 32 × 71 × 611 × 51 × 7691
LCM(7686,7690) = 29552670