What is the Least Common Multiple of 64280 and 64285?

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 64280 and 64285 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64280 and 64285, than apply into the LCM equation.

GCF(64280,64285) = 5
LCM(64280,64285) = ( 64280 × 64285) / 5
LCM(64280,64285) = 4132239800 / 5
LCM(64280,64285) = 826447960

Least Common Multiple (LCM) of 64280 and 64285 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64280 and 64285. First we will calculate the prime factors of 64280 and 64285.

Prime Factorization of 64280

Prime Factorization of 64285

Now multiplying the highest exponent prime factors to calculate the LCM of 64280 and 64285.

LCM(64280,64285) = 2³ × 5¹ × 1607¹ × 13¹ × 23¹ × 43¹
LCM(64280,64285) = 826447960