GCF and LCM Calculator Logo

What is the Least Common Multiple of 28038 and 28042?

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 28038 and 28042 is 393120798.

LCM(28038,28042) = 393120798

LCM Calculator and
and

Least Common Multiple of 28038 and 28042 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28038 and 28042, than apply into the LCM equation.

GCF(28038,28042) = 2
LCM(28038,28042) = ( 28038 × 28042) / 2
LCM(28038,28042) = 786241596 / 2
LCM(28038,28042) = 393120798

Least Common Multiple (LCM) of 28038 and 28042 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28038 and 28042. First we will calculate the prime factors of 28038 and 28042.

Prime Factorization of 28038

Prime factors of 28038 are 2, 3, 4673. Prime factorization of 28038 in exponential form is:

28038 = 21 × 31 × 46731

Prime Factorization of 28042

Prime factors of 28042 are 2, 7, 2003. Prime factorization of 28042 in exponential form is:

28042 = 21 × 71 × 20031

Now multiplying the highest exponent prime factors to calculate the LCM of 28038 and 28042.

LCM(28038,28042) = 21 × 31 × 46731 × 71 × 20031
LCM(28038,28042) = 393120798