What is the Least Common Multiple of 16560 and 16565?

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 16560 and 16565 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16560 and 16565, than apply into the LCM equation.

GCF(16560,16565) = 5
LCM(16560,16565) = ( 16560 × 16565) / 5
LCM(16560,16565) = 274316400 / 5
LCM(16560,16565) = 54863280

Least Common Multiple (LCM) of 16560 and 16565 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16560 and 16565. First we will calculate the prime factors of 16560 and 16565.

Prime Factorization of 16560

Prime Factorization of 16565

Now multiplying the highest exponent prime factors to calculate the LCM of 16560 and 16565.

LCM(16560,16565) = 2⁴ × 3² × 5¹ × 23¹ × 3313¹
LCM(16560,16565) = 54863280