What is the Least Common Multiple of 66920 and 66928?

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 66920 and 66928 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66920 and 66928, than apply into the LCM equation.

GCF(66920,66928) = 8
LCM(66920,66928) = ( 66920 × 66928) / 8
LCM(66920,66928) = 4478821760 / 8
LCM(66920,66928) = 559852720

Least Common Multiple (LCM) of 66920 and 66928 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66920 and 66928. First we will calculate the prime factors of 66920 and 66928.

Prime Factorization of 66920

Prime Factorization of 66928

Now multiplying the highest exponent prime factors to calculate the LCM of 66920 and 66928.

LCM(66920,66928) = 2⁴ × 5¹ × 7¹ × 239¹ × 47¹ × 89¹
LCM(66920,66928) = 559852720