What is the Least Common Multiple of 5978 and 5985?

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 5978 and 5985 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5978 and 5985, than apply into the LCM equation.

GCF(5978,5985) = 7
LCM(5978,5985) = ( 5978 × 5985) / 7
LCM(5978,5985) = 35778330 / 7
LCM(5978,5985) = 5111190

Least Common Multiple (LCM) of 5978 and 5985 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 5978 and 5985. First we will calculate the prime factors of 5978 and 5985.

Prime Factorization of 5978

Prime Factorization of 5985

Now multiplying the highest exponent prime factors to calculate the LCM of 5978 and 5985.

LCM(5978,5985) = 2¹ × 7² × 61¹ × 3² × 5¹ × 19¹
LCM(5978,5985) = 5111190