What is the Least Common Multiple of 67280 and 67292?

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 67280 and 67292 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67280 and 67292, than apply into the LCM equation.

GCF(67280,67292) = 4
LCM(67280,67292) = ( 67280 × 67292) / 4
LCM(67280,67292) = 4527405760 / 4
LCM(67280,67292) = 1131851440

Least Common Multiple (LCM) of 67280 and 67292 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67280 and 67292. First we will calculate the prime factors of 67280 and 67292.

Prime Factorization of 67280

Prime Factorization of 67292

Now multiplying the highest exponent prime factors to calculate the LCM of 67280 and 67292.

LCM(67280,67292) = 2⁴ × 5¹ × 29² × 16823¹
LCM(67280,67292) = 1131851440