What is the Least Common Multiple of 81570 and 81583?

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 81570 and 81583 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81570 and 81583, than apply into the LCM equation.

GCF(81570,81583) = 1
LCM(81570,81583) = ( 81570 × 81583) / 1
LCM(81570,81583) = 6654725310 / 1
LCM(81570,81583) = 6654725310

Least Common Multiple (LCM) of 81570 and 81583 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81570 and 81583. First we will calculate the prime factors of 81570 and 81583.

Prime Factorization of 81570

Prime Factorization of 81583

Now multiplying the highest exponent prime factors to calculate the LCM of 81570 and 81583.

LCM(81570,81583) = 2¹ × 3¹ × 5¹ × 2719¹ × 17¹ × 4799¹
LCM(81570,81583) = 6654725310