What is the Least Common Multiple of 25870 and 25890?

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 25870 and 25890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25870 and 25890, than apply into the LCM equation.

GCF(25870,25890) = 10
LCM(25870,25890) = ( 25870 × 25890) / 10
LCM(25870,25890) = 669774300 / 10
LCM(25870,25890) = 66977430

Least Common Multiple (LCM) of 25870 and 25890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25870 and 25890. First we will calculate the prime factors of 25870 and 25890.

Prime Factorization of 25870

Prime Factorization of 25890

Now multiplying the highest exponent prime factors to calculate the LCM of 25870 and 25890.

LCM(25870,25890) = 2¹ × 5¹ × 13¹ × 199¹ × 3¹ × 863¹
LCM(25870,25890) = 66977430