What is the Least Common Multiple of 57780 and 57785?

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 57780 and 57785 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 57780 and 57785, than apply into the LCM equation.

GCF(57780,57785) = 5
LCM(57780,57785) = ( 57780 × 57785) / 5
LCM(57780,57785) = 3338817300 / 5
LCM(57780,57785) = 667763460

Least Common Multiple (LCM) of 57780 and 57785 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 57780 and 57785. First we will calculate the prime factors of 57780 and 57785.

Prime Factorization of 57780

Prime Factorization of 57785

Now multiplying the highest exponent prime factors to calculate the LCM of 57780 and 57785.

LCM(57780,57785) = 2² × 3³ × 5¹ × 107¹ × 7¹ × 13¹ × 127¹
LCM(57780,57785) = 667763460