What is the Least Common Multiple of 7683 and 7689?

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 of 7683 and 7689 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7683 and 7689, than apply into the LCM equation.

GCF(7683,7689) = 3
LCM(7683,7689) = ( 7683 × 7689) / 3
LCM(7683,7689) = 59074587 / 3
LCM(7683,7689) = 19691529

Least Common Multiple (LCM) of 7683 and 7689 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7683 and 7689. First we will calculate the prime factors of 7683 and 7689.

Prime Factorization of 7683

Prime Factorization of 7689

Now multiplying the highest exponent prime factors to calculate the LCM of 7683 and 7689.

LCM(7683,7689) = 3¹ × 13¹ × 197¹ × 11¹ × 233¹
LCM(7683,7689) = 19691529