What is the Least Common Multiple of 64140 and 64155?

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 64140 and 64155 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64140 and 64155, than apply into the LCM equation.

GCF(64140,64155) = 15
LCM(64140,64155) = ( 64140 × 64155) / 15
LCM(64140,64155) = 4114901700 / 15
LCM(64140,64155) = 274326780

Least Common Multiple (LCM) of 64140 and 64155 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64140 and 64155. First we will calculate the prime factors of 64140 and 64155.

Prime Factorization of 64140

Prime Factorization of 64155

Now multiplying the highest exponent prime factors to calculate the LCM of 64140 and 64155.

LCM(64140,64155) = 2² × 3¹ × 5¹ × 1069¹ × 7¹ × 13¹ × 47¹
LCM(64140,64155) = 274326780