What is the Least Common Multiple of 74128 and 74132?

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 74128 and 74132 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74128 and 74132, than apply into the LCM equation.

GCF(74128,74132) = 4
LCM(74128,74132) = ( 74128 × 74132) / 4
LCM(74128,74132) = 5495256896 / 4
LCM(74128,74132) = 1373814224

Least Common Multiple (LCM) of 74128 and 74132 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74128 and 74132. First we will calculate the prime factors of 74128 and 74132.

Prime Factorization of 74128

Prime Factorization of 74132

Now multiplying the highest exponent prime factors to calculate the LCM of 74128 and 74132.

LCM(74128,74132) = 2⁴ × 41¹ × 113¹ × 43¹ × 431¹
LCM(74128,74132) = 1373814224