What is the Least Common Multiple of 7761 and 7767?

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 7761 and 7767 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7761 and 7767, than apply into the LCM equation.

GCF(7761,7767) = 3
LCM(7761,7767) = ( 7761 × 7767) / 3
LCM(7761,7767) = 60279687 / 3
LCM(7761,7767) = 20093229

Least Common Multiple (LCM) of 7761 and 7767 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7761 and 7767. First we will calculate the prime factors of 7761 and 7767.

Prime Factorization of 7761

Prime Factorization of 7767

Now multiplying the highest exponent prime factors to calculate the LCM of 7761 and 7767.

LCM(7761,7767) = 3² × 13¹ × 199¹ × 863¹
LCM(7761,7767) = 20093229