GCF and LCM Calculator Logo

What is the Least Common Multiple of 28787 and 28805?

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 28787 and 28805 is 829209535.

LCM(28787,28805) = 829209535

LCM Calculator and
and

Least Common Multiple of 28787 and 28805 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28787 and 28805, than apply into the LCM equation.

GCF(28787,28805) = 1
LCM(28787,28805) = ( 28787 × 28805) / 1
LCM(28787,28805) = 829209535 / 1
LCM(28787,28805) = 829209535

Least Common Multiple (LCM) of 28787 and 28805 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28787 and 28805. First we will calculate the prime factors of 28787 and 28805.

Prime Factorization of 28787

Prime factors of 28787 are 11, 2617. Prime factorization of 28787 in exponential form is:

28787 = 111 × 26171

Prime Factorization of 28805

Prime factors of 28805 are 5, 7, 823. Prime factorization of 28805 in exponential form is:

28805 = 51 × 71 × 8231

Now multiplying the highest exponent prime factors to calculate the LCM of 28787 and 28805.

LCM(28787,28805) = 111 × 26171 × 51 × 71 × 8231
LCM(28787,28805) = 829209535