What is the Least Common Multiple of 74139 and 74145?

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 74139 and 74145 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74139 and 74145, than apply into the LCM equation.

GCF(74139,74145) = 3
LCM(74139,74145) = ( 74139 × 74145) / 3
LCM(74139,74145) = 5497036155 / 3
LCM(74139,74145) = 1832345385

Least Common Multiple (LCM) of 74139 and 74145 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74139 and 74145. First we will calculate the prime factors of 74139 and 74145.

Prime Factorization of 74139

Prime Factorization of 74145

Now multiplying the highest exponent prime factors to calculate the LCM of 74139 and 74145.

LCM(74139,74145) = 3¹ × 13¹ × 1901¹ × 5¹ × 4943¹
LCM(74139,74145) = 1832345385