What is the Least Common Multiple of 78411 and 78423?

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 78411 and 78423 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78411 and 78423, than apply into the LCM equation.

GCF(78411,78423) = 3
LCM(78411,78423) = ( 78411 × 78423) / 3
LCM(78411,78423) = 6149225853 / 3
LCM(78411,78423) = 2049741951

Least Common Multiple (LCM) of 78411 and 78423 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78411 and 78423. First we will calculate the prime factors of 78411 and 78423.

Prime Factorization of 78411

Prime Factorization of 78423

Now multiplying the highest exponent prime factors to calculate the LCM of 78411 and 78423.

LCM(78411,78423) = 3¹ × 59¹ × 443¹ × 26141¹
LCM(78411,78423) = 2049741951