What is the Least Common Multiple of 74142 and 74154?

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 74142 and 74154 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74142 and 74154, than apply into the LCM equation.

GCF(74142,74154) = 6
LCM(74142,74154) = ( 74142 × 74154) / 6
LCM(74142,74154) = 5497925868 / 6
LCM(74142,74154) = 916320978

Least Common Multiple (LCM) of 74142 and 74154 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74142 and 74154. First we will calculate the prime factors of 74142 and 74154.

Prime Factorization of 74142

Prime Factorization of 74154

Now multiplying the highest exponent prime factors to calculate the LCM of 74142 and 74154.

LCM(74142,74154) = 2¹ × 3³ × 1373¹ × 17¹ × 727¹
LCM(74142,74154) = 916320978