What is the Least Common Multiple of 90070 and 90085?

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 90070 and 90085 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 90070 and 90085, than apply into the LCM equation.

GCF(90070,90085) = 5
LCM(90070,90085) = ( 90070 × 90085) / 5
LCM(90070,90085) = 8113955950 / 5
LCM(90070,90085) = 1622791190

Least Common Multiple (LCM) of 90070 and 90085 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 90070 and 90085. First we will calculate the prime factors of 90070 and 90085.

Prime Factorization of 90070

Prime Factorization of 90085

Now multiplying the highest exponent prime factors to calculate the LCM of 90070 and 90085.

LCM(90070,90085) = 2¹ × 5¹ × 9007¹ × 43¹ × 419¹
LCM(90070,90085) = 1622791190