What is the Least Common Multiple of 69985 and 70005?

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 69985 and 70005 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69985 and 70005, than apply into the LCM equation.

GCF(69985,70005) = 5
LCM(69985,70005) = ( 69985 × 70005) / 5
LCM(69985,70005) = 4899299925 / 5
LCM(69985,70005) = 979859985

Least Common Multiple (LCM) of 69985 and 70005 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69985 and 70005. First we will calculate the prime factors of 69985 and 70005.

Prime Factorization of 69985

Prime Factorization of 70005

Now multiplying the highest exponent prime factors to calculate the LCM of 69985 and 70005.

LCM(69985,70005) = 5¹ × 13997¹ × 3¹ × 13¹ × 359¹
LCM(69985,70005) = 979859985