What is the Least Common Multiple of 65978 and 65987?

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 65978 and 65987 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65978 and 65987, than apply into the LCM equation.

GCF(65978,65987) = 1
LCM(65978,65987) = ( 65978 × 65987) / 1
LCM(65978,65987) = 4353690286 / 1
LCM(65978,65987) = 4353690286

Least Common Multiple (LCM) of 65978 and 65987 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65978 and 65987. First we will calculate the prime factors of 65978 and 65987.

Prime Factorization of 65978

Prime Factorization of 65987

Now multiplying the highest exponent prime factors to calculate the LCM of 65978 and 65987.

LCM(65978,65987) = 2¹ × 11¹ × 2999¹ × 19¹ × 23¹ × 151¹
LCM(65978,65987) = 4353690286