What is the Least Common Multiple of 66440 and 66445?

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 66445 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 66445, than apply into the LCM equation.

GCF(66440,66445) = 5
LCM(66440,66445) = ( 66440 × 66445) / 5
LCM(66440,66445) = 4414605800 / 5
LCM(66440,66445) = 882921160

Least Common Multiple (LCM) of 66440 and 66445 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66440 and 66445. First we will calculate the prime factors of 66440 and 66445.

Prime Factorization of 66440

Prime Factorization of 66445

Now multiplying the highest exponent prime factors to calculate the LCM of 66440 and 66445.

LCM(66440,66445) = 2³ × 5¹ × 11¹ × 151¹ × 97¹ × 137¹
LCM(66440,66445) = 882921160