What is the Least Common Multiple of 85814 and 85820?

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 85814 and 85820 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85814 and 85820, than apply into the LCM equation.

GCF(85814,85820) = 2
LCM(85814,85820) = ( 85814 × 85820) / 2
LCM(85814,85820) = 7364557480 / 2
LCM(85814,85820) = 3682278740

Least Common Multiple (LCM) of 85814 and 85820 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85814 and 85820. First we will calculate the prime factors of 85814 and 85820.

Prime Factorization of 85814

Prime Factorization of 85820

Now multiplying the highest exponent prime factors to calculate the LCM of 85814 and 85820.

LCM(85814,85820) = 2² × 107¹ × 401¹ × 5¹ × 7¹ × 613¹
LCM(85814,85820) = 3682278740