GCF and LCM Calculator Logo

What is the Least Common Multiple of 78655 and 78666?

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 78655 and 78666 is 6187474230.

LCM(78655,78666) = 6187474230

LCM Calculator and
and

Least Common Multiple of 78655 and 78666 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78655 and 78666, than apply into the LCM equation.

GCF(78655,78666) = 1
LCM(78655,78666) = ( 78655 × 78666) / 1
LCM(78655,78666) = 6187474230 / 1
LCM(78655,78666) = 6187474230

Least Common Multiple (LCM) of 78655 and 78666 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78655 and 78666. First we will calculate the prime factors of 78655 and 78666.

Prime Factorization of 78655

Prime factors of 78655 are 5, 15731. Prime factorization of 78655 in exponential form is:

78655 = 51 × 157311

Prime Factorization of 78666

Prime factors of 78666 are 2, 3, 7, 1873. Prime factorization of 78666 in exponential form is:

78666 = 21 × 31 × 71 × 18731

Now multiplying the highest exponent prime factors to calculate the LCM of 78655 and 78666.

LCM(78655,78666) = 51 × 157311 × 21 × 31 × 71 × 18731
LCM(78655,78666) = 6187474230