What is the Least Common Multiple of 65560 and 65568?

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 65560 and 65568 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65560 and 65568, than apply into the LCM equation.

GCF(65560,65568) = 8
LCM(65560,65568) = ( 65560 × 65568) / 8
LCM(65560,65568) = 4298638080 / 8
LCM(65560,65568) = 537329760

Least Common Multiple (LCM) of 65560 and 65568 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65560 and 65568. First we will calculate the prime factors of 65560 and 65568.

Prime Factorization of 65560

Prime Factorization of 65568

Now multiplying the highest exponent prime factors to calculate the LCM of 65560 and 65568.

LCM(65560,65568) = 2⁵ × 5¹ × 11¹ × 149¹ × 3¹ × 683¹
LCM(65560,65568) = 537329760