What is the Least Common Multiple of 81656 and 81674?

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 81656 and 81674 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81656 and 81674, than apply into the LCM equation.

GCF(81656,81674) = 2
LCM(81656,81674) = ( 81656 × 81674) / 2
LCM(81656,81674) = 6669172144 / 2
LCM(81656,81674) = 3334586072

Least Common Multiple (LCM) of 81656 and 81674 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81656 and 81674. First we will calculate the prime factors of 81656 and 81674.

Prime Factorization of 81656

Prime Factorization of 81674

Now multiplying the highest exponent prime factors to calculate the LCM of 81656 and 81674.

LCM(81656,81674) = 2³ × 59¹ × 173¹ × 97¹ × 421¹
LCM(81656,81674) = 3334586072