What is the Least Common Multiple of 4905 and 4915?

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 4905 and 4915 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4905 and 4915, than apply into the LCM equation.

GCF(4905,4915) = 5
LCM(4905,4915) = ( 4905 × 4915) / 5
LCM(4905,4915) = 24108075 / 5
LCM(4905,4915) = 4821615

Least Common Multiple (LCM) of 4905 and 4915 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4905 and 4915. First we will calculate the prime factors of 4905 and 4915.

Prime Factorization of 4905

Prime Factorization of 4915

Now multiplying the highest exponent prime factors to calculate the LCM of 4905 and 4915.

LCM(4905,4915) = 3² × 5¹ × 109¹ × 983¹
LCM(4905,4915) = 4821615