What is the Least Common Multiple of 66440 and 66460?

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 66440 and 66460 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66440 and 66460, than apply into the LCM equation.

GCF(66440,66460) = 20
LCM(66440,66460) = ( 66440 × 66460) / 20
LCM(66440,66460) = 4415602400 / 20
LCM(66440,66460) = 220780120

Least Common Multiple (LCM) of 66440 and 66460 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66440 and 66460. First we will calculate the prime factors of 66440 and 66460.

Prime Factorization of 66440

Prime Factorization of 66460

Now multiplying the highest exponent prime factors to calculate the LCM of 66440 and 66460.

LCM(66440,66460) = 2³ × 5¹ × 11¹ × 151¹ × 3323¹
LCM(66440,66460) = 220780120