What is the Least Common Multiple of 68520 and 68530?

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 68520 and 68530 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68520 and 68530, than apply into the LCM equation.

GCF(68520,68530) = 10
LCM(68520,68530) = ( 68520 × 68530) / 10
LCM(68520,68530) = 4695675600 / 10
LCM(68520,68530) = 469567560

Least Common Multiple (LCM) of 68520 and 68530 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68520 and 68530. First we will calculate the prime factors of 68520 and 68530.

Prime Factorization of 68520

Prime Factorization of 68530

Now multiplying the highest exponent prime factors to calculate the LCM of 68520 and 68530.

LCM(68520,68530) = 2³ × 3¹ × 5¹ × 571¹ × 7¹ × 11¹ × 89¹
LCM(68520,68530) = 469567560