What is the Least Common Multiple of 67405 and 67419?

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 67405 and 67419 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67405 and 67419, than apply into the LCM equation.

GCF(67405,67419) = 1
LCM(67405,67419) = ( 67405 × 67419) / 1
LCM(67405,67419) = 4544377695 / 1
LCM(67405,67419) = 4544377695

Least Common Multiple (LCM) of 67405 and 67419 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67405 and 67419. First we will calculate the prime factors of 67405 and 67419.

Prime Factorization of 67405

Prime Factorization of 67419

Now multiplying the highest exponent prime factors to calculate the LCM of 67405 and 67419.

LCM(67405,67419) = 5¹ × 13¹ × 17¹ × 61¹ × 3³ × 11¹ × 227¹
LCM(67405,67419) = 4544377695