What is the Least Common Multiple of 39438 and 39445?

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 39438 and 39445 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39438 and 39445, than apply into the LCM equation.

GCF(39438,39445) = 7
LCM(39438,39445) = ( 39438 × 39445) / 7
LCM(39438,39445) = 1555631910 / 7
LCM(39438,39445) = 222233130

Least Common Multiple (LCM) of 39438 and 39445 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39438 and 39445. First we will calculate the prime factors of 39438 and 39445.

Prime Factorization of 39438

Prime Factorization of 39445

Now multiplying the highest exponent prime factors to calculate the LCM of 39438 and 39445.

LCM(39438,39445) = 2¹ × 3² × 7³ × 313¹ × 5¹ × 23¹
LCM(39438,39445) = 222233130