What is the Least Common Multiple of 68561 and 68568?

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 68561 and 68568 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68561 and 68568, than apply into the LCM equation.

GCF(68561,68568) = 1
LCM(68561,68568) = ( 68561 × 68568) / 1
LCM(68561,68568) = 4701090648 / 1
LCM(68561,68568) = 4701090648

Least Common Multiple (LCM) of 68561 and 68568 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68561 and 68568. First we will calculate the prime factors of 68561 and 68568.

Prime Factorization of 68561

Prime Factorization of 68568

Now multiplying the highest exponent prime factors to calculate the LCM of 68561 and 68568.

LCM(68561,68568) = 17¹ × 37¹ × 109¹ × 2³ × 3¹ × 2857¹
LCM(68561,68568) = 4701090648