What is the Least Common Multiple of 86989 and 87003?

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 86989 and 87003 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86989 and 87003, than apply into the LCM equation.

GCF(86989,87003) = 7
LCM(86989,87003) = ( 86989 × 87003) / 7
LCM(86989,87003) = 7568303967 / 7
LCM(86989,87003) = 1081186281

Least Common Multiple (LCM) of 86989 and 87003 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86989 and 87003. First we will calculate the prime factors of 86989 and 87003.

Prime Factorization of 86989

Prime Factorization of 87003

Now multiplying the highest exponent prime factors to calculate the LCM of 86989 and 87003.

LCM(86989,87003) = 7¹ × 17² × 43¹ × 3² × 1381¹
LCM(86989,87003) = 1081186281