What is the Least Common Multiple of 85105 and 85115?

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 85105 and 85115 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85105 and 85115, than apply into the LCM equation.

GCF(85105,85115) = 5
LCM(85105,85115) = ( 85105 × 85115) / 5
LCM(85105,85115) = 7243712075 / 5
LCM(85105,85115) = 1448742415

Least Common Multiple (LCM) of 85105 and 85115 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85105 and 85115. First we will calculate the prime factors of 85105 and 85115.

Prime Factorization of 85105

Prime Factorization of 85115

Now multiplying the highest exponent prime factors to calculate the LCM of 85105 and 85115.

LCM(85105,85115) = 5¹ × 17021¹ × 29¹ × 587¹
LCM(85105,85115) = 1448742415