What is the Least Common Multiple of 68561 and 68578?

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 68578 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 68578, than apply into the LCM equation.

GCF(68561,68578) = 17
LCM(68561,68578) = ( 68561 × 68578) / 17
LCM(68561,68578) = 4701776258 / 17
LCM(68561,68578) = 276575074

Least Common Multiple (LCM) of 68561 and 68578 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68561 and 68578. First we will calculate the prime factors of 68561 and 68578.

Prime Factorization of 68561

Prime Factorization of 68578

Now multiplying the highest exponent prime factors to calculate the LCM of 68561 and 68578.

LCM(68561,68578) = 17¹ × 37¹ × 109¹ × 2¹ × 2017¹
LCM(68561,68578) = 276575074