What is the Least Common Multiple of 65878 and 65890?

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 65878 and 65890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65878 and 65890, than apply into the LCM equation.

GCF(65878,65890) = 2
LCM(65878,65890) = ( 65878 × 65890) / 2
LCM(65878,65890) = 4340701420 / 2
LCM(65878,65890) = 2170350710

Least Common Multiple (LCM) of 65878 and 65890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65878 and 65890. First we will calculate the prime factors of 65878 and 65890.

Prime Factorization of 65878

Prime Factorization of 65890

Now multiplying the highest exponent prime factors to calculate the LCM of 65878 and 65890.

LCM(65878,65890) = 2¹ × 32939¹ × 5¹ × 11¹ × 599¹
LCM(65878,65890) = 2170350710