What is the Least Common Multiple of 66220 and 66238?

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 66220 and 66238 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66220 and 66238, than apply into the LCM equation.

GCF(66220,66238) = 2
LCM(66220,66238) = ( 66220 × 66238) / 2
LCM(66220,66238) = 4386280360 / 2
LCM(66220,66238) = 2193140180

Least Common Multiple (LCM) of 66220 and 66238 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66220 and 66238. First we will calculate the prime factors of 66220 and 66238.

Prime Factorization of 66220

Prime Factorization of 66238

Now multiplying the highest exponent prime factors to calculate the LCM of 66220 and 66238.

LCM(66220,66238) = 2² × 5¹ × 7¹ × 11¹ × 43¹ × 33119¹
LCM(66220,66238) = 2193140180