What is the Least Common Multiple of 90080 and 90091?

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 90080 and 90091 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90080 and 90091, than apply into the LCM equation.

GCF(90080,90091) = 1
LCM(90080,90091) = ( 90080 × 90091) / 1
LCM(90080,90091) = 8115397280 / 1
LCM(90080,90091) = 8115397280

Least Common Multiple (LCM) of 90080 and 90091 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90080 and 90091. First we will calculate the prime factors of 90080 and 90091.

Prime Factorization of 90080

Prime Factorization of 90091

Now multiplying the highest exponent prime factors to calculate the LCM of 90080 and 90091.

LCM(90080,90091) = 2⁵ × 5¹ × 563¹ × 23¹ × 3917¹
LCM(90080,90091) = 8115397280