What is the Least Common Multiple of 42689 and 42703?

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 42689 and 42703 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42689 and 42703, than apply into the LCM equation.

GCF(42689,42703) = 1
LCM(42689,42703) = ( 42689 × 42703) / 1
LCM(42689,42703) = 1822948367 / 1
LCM(42689,42703) = 1822948367

Least Common Multiple (LCM) of 42689 and 42703 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42689 and 42703. First we will calculate the prime factors of 42689 and 42703.

Prime Factorization of 42689

Prime Factorization of 42703

Now multiplying the highest exponent prime factors to calculate the LCM of 42689 and 42703.

LCM(42689,42703) = 42689¹ × 42703¹
LCM(42689,42703) = 1822948367