What is the Least Common Multiple of 71139 and 71145?

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 71139 and 71145 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71139 and 71145, than apply into the LCM equation.

GCF(71139,71145) = 3
LCM(71139,71145) = ( 71139 × 71145) / 3
LCM(71139,71145) = 5061184155 / 3
LCM(71139,71145) = 1687061385

Least Common Multiple (LCM) of 71139 and 71145 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71139 and 71145. First we will calculate the prime factors of 71139 and 71145.

Prime Factorization of 71139

Prime Factorization of 71145

Now multiplying the highest exponent prime factors to calculate the LCM of 71139 and 71145.

LCM(71139,71145) = 3³ × 23¹ × 1031¹ × 5¹ × 17¹ × 31¹
LCM(71139,71145) = 1687061385