What is the Least Common Multiple of 69905 and 69910?

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 69905 and 69910 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69905 and 69910, than apply into the LCM equation.

GCF(69905,69910) = 5
LCM(69905,69910) = ( 69905 × 69910) / 5
LCM(69905,69910) = 4887058550 / 5
LCM(69905,69910) = 977411710

Least Common Multiple (LCM) of 69905 and 69910 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69905 and 69910. First we will calculate the prime factors of 69905 and 69910.

Prime Factorization of 69905

Prime Factorization of 69910

Now multiplying the highest exponent prime factors to calculate the LCM of 69905 and 69910.

LCM(69905,69910) = 5¹ × 11¹ × 31¹ × 41¹ × 2¹ × 6991¹
LCM(69905,69910) = 977411710