What is the Least Common Multiple of 74040 and 74056?

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 74040 and 74056 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74040 and 74056, than apply into the LCM equation.

GCF(74040,74056) = 8
LCM(74040,74056) = ( 74040 × 74056) / 8
LCM(74040,74056) = 5483106240 / 8
LCM(74040,74056) = 685388280

Least Common Multiple (LCM) of 74040 and 74056 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74040 and 74056. First we will calculate the prime factors of 74040 and 74056.

Prime Factorization of 74040

Prime Factorization of 74056

Now multiplying the highest exponent prime factors to calculate the LCM of 74040 and 74056.

LCM(74040,74056) = 2³ × 3¹ × 5¹ × 617¹ × 9257¹
LCM(74040,74056) = 685388280