What is the Least Common Multiple of 69890 and 69905?

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 69890 and 69905 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69890 and 69905, than apply into the LCM equation.

GCF(69890,69905) = 5
LCM(69890,69905) = ( 69890 × 69905) / 5
LCM(69890,69905) = 4885660450 / 5
LCM(69890,69905) = 977132090

Least Common Multiple (LCM) of 69890 and 69905 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69890 and 69905. First we will calculate the prime factors of 69890 and 69905.

Prime Factorization of 69890

Prime Factorization of 69905

Now multiplying the highest exponent prime factors to calculate the LCM of 69890 and 69905.

LCM(69890,69905) = 2¹ × 5¹ × 29¹ × 241¹ × 11¹ × 31¹ × 41¹
LCM(69890,69905) = 977132090