GCF and LCM Calculator Logo

What is the Least Common Multiple of 39898 and 39905?

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 (LCM) of 39898 and 39905 is 1592129690.

LCM(39898,39905) = 1592129690

LCM Calculator and
and

Least Common Multiple of 39898 and 39905 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39898 and 39905, than apply into the LCM equation.

GCF(39898,39905) = 1
LCM(39898,39905) = ( 39898 × 39905) / 1
LCM(39898,39905) = 1592129690 / 1
LCM(39898,39905) = 1592129690

Least Common Multiple (LCM) of 39898 and 39905 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39898 and 39905. First we will calculate the prime factors of 39898 and 39905.

Prime Factorization of 39898

Prime factors of 39898 are 2, 19949. Prime factorization of 39898 in exponential form is:

39898 = 21 × 199491

Prime Factorization of 39905

Prime factors of 39905 are 5, 23, 347. Prime factorization of 39905 in exponential form is:

39905 = 51 × 231 × 3471

Now multiplying the highest exponent prime factors to calculate the LCM of 39898 and 39905.

LCM(39898,39905) = 21 × 199491 × 51 × 231 × 3471
LCM(39898,39905) = 1592129690