What is the Least Common Multiple of 5380 and 5390?

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 5380 and 5390 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5380 and 5390, than apply into the LCM equation.

GCF(5380,5390) = 10
LCM(5380,5390) = ( 5380 × 5390) / 10
LCM(5380,5390) = 28998200 / 10
LCM(5380,5390) = 2899820

Least Common Multiple (LCM) of 5380 and 5390 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 5380 and 5390. First we will calculate the prime factors of 5380 and 5390.

Prime Factorization of 5380

Prime Factorization of 5390

Now multiplying the highest exponent prime factors to calculate the LCM of 5380 and 5390.

LCM(5380,5390) = 2² × 5¹ × 269¹ × 7² × 11¹
LCM(5380,5390) = 2899820