What is the Least Common Multiple of 5472 and 5490?

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 5472 and 5490 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5472 and 5490, than apply into the LCM equation.

GCF(5472,5490) = 18
LCM(5472,5490) = ( 5472 × 5490) / 18
LCM(5472,5490) = 30041280 / 18
LCM(5472,5490) = 1668960

Least Common Multiple (LCM) of 5472 and 5490 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 5472 and 5490. First we will calculate the prime factors of 5472 and 5490.

Prime Factorization of 5472

Prime Factorization of 5490

Now multiplying the highest exponent prime factors to calculate the LCM of 5472 and 5490.

LCM(5472,5490) = 2⁵ × 3² × 19¹ × 5¹ × 61¹
LCM(5472,5490) = 1668960