What is the Least Common Multiple of 76905 and 76915?

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 76905 and 76915 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 76905 and 76915, than apply into the LCM equation.

GCF(76905,76915) = 5
LCM(76905,76915) = ( 76905 × 76915) / 5
LCM(76905,76915) = 5915148075 / 5
LCM(76905,76915) = 1183029615

Least Common Multiple (LCM) of 76905 and 76915 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 76905 and 76915. First we will calculate the prime factors of 76905 and 76915.

Prime Factorization of 76905

Prime Factorization of 76915

Now multiplying the highest exponent prime factors to calculate the LCM of 76905 and 76915.

LCM(76905,76915) = 3² × 5¹ × 1709¹ × 15383¹
LCM(76905,76915) = 1183029615