What is the Least Common Multiple of 72921 and 72939?

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 72921 and 72939 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72921 and 72939, than apply into the LCM equation.

GCF(72921,72939) = 3
LCM(72921,72939) = ( 72921 × 72939) / 3
LCM(72921,72939) = 5318784819 / 3
LCM(72921,72939) = 1772928273

Least Common Multiple (LCM) of 72921 and 72939 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72921 and 72939. First we will calculate the prime factors of 72921 and 72939.

Prime Factorization of 72921

Prime Factorization of 72939

Now multiplying the highest exponent prime factors to calculate the LCM of 72921 and 72939.

LCM(72921,72939) = 3¹ × 109¹ × 223¹ × 41¹ × 593¹
LCM(72921,72939) = 1772928273