What is the Least Common Multiple of 18890 and 18902?

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 18890 and 18902 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18890 and 18902, than apply into the LCM equation.

GCF(18890,18902) = 2
LCM(18890,18902) = ( 18890 × 18902) / 2
LCM(18890,18902) = 357058780 / 2
LCM(18890,18902) = 178529390

Least Common Multiple (LCM) of 18890 and 18902 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18890 and 18902. First we will calculate the prime factors of 18890 and 18902.

Prime Factorization of 18890

Prime Factorization of 18902

Now multiplying the highest exponent prime factors to calculate the LCM of 18890 and 18902.

LCM(18890,18902) = 2¹ × 5¹ × 1889¹ × 13¹ × 727¹
LCM(18890,18902) = 178529390