What is the Least Common Multiple of 81542 and 81562?

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 81542 and 81562 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81542 and 81562, than apply into the LCM equation.

GCF(81542,81562) = 2
LCM(81542,81562) = ( 81542 × 81562) / 2
LCM(81542,81562) = 6650728604 / 2
LCM(81542,81562) = 3325364302

Least Common Multiple (LCM) of 81542 and 81562 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81542 and 81562. First we will calculate the prime factors of 81542 and 81562.

Prime Factorization of 81542

Prime Factorization of 81562

Now multiplying the highest exponent prime factors to calculate the LCM of 81542 and 81562.

LCM(81542,81562) = 2¹ × 40771¹ × 13¹ × 3137¹
LCM(81542,81562) = 3325364302