What is the Least Common Multiple of 78474 and 78485?

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 78474 and 78485 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78474 and 78485, than apply into the LCM equation.

GCF(78474,78485) = 11
LCM(78474,78485) = ( 78474 × 78485) / 11
LCM(78474,78485) = 6159031890 / 11
LCM(78474,78485) = 559911990

Least Common Multiple (LCM) of 78474 and 78485 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78474 and 78485. First we will calculate the prime factors of 78474 and 78485.

Prime Factorization of 78474

Prime Factorization of 78485

Now multiplying the highest exponent prime factors to calculate the LCM of 78474 and 78485.

LCM(78474,78485) = 2¹ × 3¹ × 11¹ × 29¹ × 41¹ × 5¹ × 1427¹
LCM(78474,78485) = 559911990