What is the Least Common Multiple of 78765 and 78781?

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 78765 and 78781 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78765 and 78781, than apply into the LCM equation.

GCF(78765,78781) = 1
LCM(78765,78781) = ( 78765 × 78781) / 1
LCM(78765,78781) = 6205185465 / 1
LCM(78765,78781) = 6205185465

Least Common Multiple (LCM) of 78765 and 78781 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78765 and 78781. First we will calculate the prime factors of 78765 and 78781.

Prime Factorization of 78765

Prime Factorization of 78781

Now multiplying the highest exponent prime factors to calculate the LCM of 78765 and 78781.

LCM(78765,78781) = 3¹ × 5¹ × 59¹ × 89¹ × 78781¹
LCM(78765,78781) = 6205185465