What is the Least Common Multiple of 20608 and 20616?

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 20608 and 20616 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20608 and 20616, than apply into the LCM equation.

GCF(20608,20616) = 8
LCM(20608,20616) = ( 20608 × 20616) / 8
LCM(20608,20616) = 424854528 / 8
LCM(20608,20616) = 53106816

Least Common Multiple (LCM) of 20608 and 20616 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20608 and 20616. First we will calculate the prime factors of 20608 and 20616.

Prime Factorization of 20608

Prime Factorization of 20616

Now multiplying the highest exponent prime factors to calculate the LCM of 20608 and 20616.

LCM(20608,20616) = 2⁷ × 7¹ × 23¹ × 3¹ × 859¹
LCM(20608,20616) = 53106816