GCF and LCM Calculator Logo

What is the Least Common Multiple of 28680 and 28698?

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 (LCM) of 28680 and 28698 is 137176440.

LCM(28680,28698) = 137176440

LCM Calculator and
and

Least Common Multiple of 28680 and 28698 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28680 and 28698, than apply into the LCM equation.

GCF(28680,28698) = 6
LCM(28680,28698) = ( 28680 × 28698) / 6
LCM(28680,28698) = 823058640 / 6
LCM(28680,28698) = 137176440

Least Common Multiple (LCM) of 28680 and 28698 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28680 and 28698. First we will calculate the prime factors of 28680 and 28698.

Prime Factorization of 28680

Prime factors of 28680 are 2, 3, 5, 239. Prime factorization of 28680 in exponential form is:

28680 = 23 × 31 × 51 × 2391

Prime Factorization of 28698

Prime factors of 28698 are 2, 3, 4783. Prime factorization of 28698 in exponential form is:

28698 = 21 × 31 × 47831

Now multiplying the highest exponent prime factors to calculate the LCM of 28680 and 28698.

LCM(28680,28698) = 23 × 31 × 51 × 2391 × 47831
LCM(28680,28698) = 137176440