What is the Least Common Multiple of 70666 and 70686?

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 70666 and 70686 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70666 and 70686, than apply into the LCM equation.

GCF(70666,70686) = 2
LCM(70666,70686) = ( 70666 × 70686) / 2
LCM(70666,70686) = 4995096876 / 2
LCM(70666,70686) = 2497548438

Least Common Multiple (LCM) of 70666 and 70686 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70666 and 70686. First we will calculate the prime factors of 70666 and 70686.

Prime Factorization of 70666

Prime Factorization of 70686

Now multiplying the highest exponent prime factors to calculate the LCM of 70666 and 70686.

LCM(70666,70686) = 2¹ × 89¹ × 397¹ × 3³ × 7¹ × 11¹ × 17¹
LCM(70666,70686) = 2497548438