What is the Least Common Multiple of 5600 and 5620?

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 5600 and 5620 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5600 and 5620, than apply into the LCM equation.

GCF(5600,5620) = 20
LCM(5600,5620) = ( 5600 × 5620) / 20
LCM(5600,5620) = 31472000 / 20
LCM(5600,5620) = 1573600

Least Common Multiple (LCM) of 5600 and 5620 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 5600 and 5620. First we will calculate the prime factors of 5600 and 5620.

Prime Factorization of 5600

Prime Factorization of 5620

Now multiplying the highest exponent prime factors to calculate the LCM of 5600 and 5620.

LCM(5600,5620) = 2⁵ × 5² × 7¹ × 281¹
LCM(5600,5620) = 1573600