What is the Least Common Multiple of 77280 and 77297?

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 77280 and 77297 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77280 and 77297, than apply into the LCM equation.

GCF(77280,77297) = 1
LCM(77280,77297) = ( 77280 × 77297) / 1
LCM(77280,77297) = 5973512160 / 1
LCM(77280,77297) = 5973512160

Least Common Multiple (LCM) of 77280 and 77297 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77280 and 77297. First we will calculate the prime factors of 77280 and 77297.

Prime Factorization of 77280

Prime Factorization of 77297

Now multiplying the highest exponent prime factors to calculate the LCM of 77280 and 77297.

LCM(77280,77297) = 2⁵ × 3¹ × 5¹ × 7¹ × 23¹ × 11¹ × 7027¹
LCM(77280,77297) = 5973512160