What is the Least Common Multiple of 69640 and 69655?

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 69640 and 69655 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69640 and 69655, than apply into the LCM equation.

GCF(69640,69655) = 5
LCM(69640,69655) = ( 69640 × 69655) / 5
LCM(69640,69655) = 4850774200 / 5
LCM(69640,69655) = 970154840

Least Common Multiple (LCM) of 69640 and 69655 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69640 and 69655. First we will calculate the prime factors of 69640 and 69655.

Prime Factorization of 69640

Prime Factorization of 69655

Now multiplying the highest exponent prime factors to calculate the LCM of 69640 and 69655.

LCM(69640,69655) = 2³ × 5¹ × 1741¹ × 13931¹
LCM(69640,69655) = 970154840