What is the Least Common Multiple of 5680 and 5685?

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 5680 and 5685 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5680 and 5685, than apply into the LCM equation.

GCF(5680,5685) = 5
LCM(5680,5685) = ( 5680 × 5685) / 5
LCM(5680,5685) = 32290800 / 5
LCM(5680,5685) = 6458160

Least Common Multiple (LCM) of 5680 and 5685 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 5680 and 5685. First we will calculate the prime factors of 5680 and 5685.

Prime Factorization of 5680

Prime Factorization of 5685

Now multiplying the highest exponent prime factors to calculate the LCM of 5680 and 5685.

LCM(5680,5685) = 2⁴ × 5¹ × 71¹ × 3¹ × 379¹
LCM(5680,5685) = 6458160