What is the Least Common Multiple of 69728 and 69748?

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 69728 and 69748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69728 and 69748, than apply into the LCM equation.

GCF(69728,69748) = 4
LCM(69728,69748) = ( 69728 × 69748) / 4
LCM(69728,69748) = 4863388544 / 4
LCM(69728,69748) = 1215847136

Least Common Multiple (LCM) of 69728 and 69748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69728 and 69748. First we will calculate the prime factors of 69728 and 69748.

Prime Factorization of 69728

Prime Factorization of 69748

Now multiplying the highest exponent prime factors to calculate the LCM of 69728 and 69748.

LCM(69728,69748) = 2⁵ × 2179¹ × 7¹ × 47¹ × 53¹
LCM(69728,69748) = 1215847136