What is the Least Common Multiple of 42028 and 42047?

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 42028 and 42047 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42028 and 42047, than apply into the LCM equation.

GCF(42028,42047) = 19
LCM(42028,42047) = ( 42028 × 42047) / 19
LCM(42028,42047) = 1767151316 / 19
LCM(42028,42047) = 93007964

Least Common Multiple (LCM) of 42028 and 42047 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42028 and 42047. First we will calculate the prime factors of 42028 and 42047.

Prime Factorization of 42028

Prime Factorization of 42047

Now multiplying the highest exponent prime factors to calculate the LCM of 42028 and 42047.

LCM(42028,42047) = 2² × 7¹ × 19¹ × 79¹ × 2213¹
LCM(42028,42047) = 93007964