What is the Least Common Multiple of 75781 and 75788?

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 75781 and 75788 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75781 and 75788, than apply into the LCM equation.

GCF(75781,75788) = 1
LCM(75781,75788) = ( 75781 × 75788) / 1
LCM(75781,75788) = 5743290428 / 1
LCM(75781,75788) = 5743290428

Least Common Multiple (LCM) of 75781 and 75788 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75781 and 75788. First we will calculate the prime factors of 75781 and 75788.

Prime Factorization of 75781

Prime Factorization of 75788

Now multiplying the highest exponent prime factors to calculate the LCM of 75781 and 75788.

LCM(75781,75788) = 75781¹ × 2² × 18947¹
LCM(75781,75788) = 5743290428