What is the Least Common Multiple of 87661 and 87681?

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 87661 and 87681 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87661 and 87681, than apply into the LCM equation.

GCF(87661,87681) = 1
LCM(87661,87681) = ( 87661 × 87681) / 1
LCM(87661,87681) = 7686204141 / 1
LCM(87661,87681) = 7686204141

Least Common Multiple (LCM) of 87661 and 87681 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87661 and 87681. First we will calculate the prime factors of 87661 and 87681.

Prime Factorization of 87661

Prime Factorization of 87681

Now multiplying the highest exponent prime factors to calculate the LCM of 87661 and 87681.

LCM(87661,87681) = 7² × 1789¹ × 3¹ × 11¹ × 2657¹
LCM(87661,87681) = 7686204141