What is the Least Common Multiple of 16860 and 16864?

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 16860 and 16864 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16860 and 16864, than apply into the LCM equation.

GCF(16860,16864) = 4
LCM(16860,16864) = ( 16860 × 16864) / 4
LCM(16860,16864) = 284327040 / 4
LCM(16860,16864) = 71081760

Least Common Multiple (LCM) of 16860 and 16864 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16860 and 16864. First we will calculate the prime factors of 16860 and 16864.

Prime Factorization of 16860

Prime Factorization of 16864

Now multiplying the highest exponent prime factors to calculate the LCM of 16860 and 16864.

LCM(16860,16864) = 2⁵ × 3¹ × 5¹ × 281¹ × 17¹ × 31¹
LCM(16860,16864) = 71081760