What is the Least Common Multiple of 89840 and 89860?

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 89840 and 89860 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 89840 and 89860, than apply into the LCM equation.

GCF(89840,89860) = 20
LCM(89840,89860) = ( 89840 × 89860) / 20
LCM(89840,89860) = 8073022400 / 20
LCM(89840,89860) = 403651120

Least Common Multiple (LCM) of 89840 and 89860 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 89840 and 89860. First we will calculate the prime factors of 89840 and 89860.

Prime Factorization of 89840

Prime Factorization of 89860

Now multiplying the highest exponent prime factors to calculate the LCM of 89840 and 89860.

LCM(89840,89860) = 2⁴ × 5¹ × 1123¹ × 4493¹
LCM(89840,89860) = 403651120