What is the Least Common Multiple of 77781 and 77790?

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 77781 and 77790 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77781 and 77790, than apply into the LCM equation.

GCF(77781,77790) = 3
LCM(77781,77790) = ( 77781 × 77790) / 3
LCM(77781,77790) = 6050583990 / 3
LCM(77781,77790) = 2016861330

Least Common Multiple (LCM) of 77781 and 77790 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77781 and 77790. First we will calculate the prime factors of 77781 and 77790.

Prime Factorization of 77781

Prime Factorization of 77790

Now multiplying the highest exponent prime factors to calculate the LCM of 77781 and 77790.

LCM(77781,77790) = 3¹ × 11¹ × 2357¹ × 2¹ × 5¹ × 2593¹
LCM(77781,77790) = 2016861330