What is the Least Common Multiple of 69810 and 69820?

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 69810 and 69820 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69810 and 69820, than apply into the LCM equation.

GCF(69810,69820) = 10
LCM(69810,69820) = ( 69810 × 69820) / 10
LCM(69810,69820) = 4874134200 / 10
LCM(69810,69820) = 487413420

Least Common Multiple (LCM) of 69810 and 69820 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69810 and 69820. First we will calculate the prime factors of 69810 and 69820.

Prime Factorization of 69810

Prime Factorization of 69820

Now multiplying the highest exponent prime factors to calculate the LCM of 69810 and 69820.

LCM(69810,69820) = 2² × 3¹ × 5¹ × 13¹ × 179¹ × 3491¹
LCM(69810,69820) = 487413420