What is the Least Common Multiple of 12890 and 12904?

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 12890 and 12904 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12890 and 12904, than apply into the LCM equation.

GCF(12890,12904) = 2
LCM(12890,12904) = ( 12890 × 12904) / 2
LCM(12890,12904) = 166332560 / 2
LCM(12890,12904) = 83166280

Least Common Multiple (LCM) of 12890 and 12904 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12890 and 12904. First we will calculate the prime factors of 12890 and 12904.

Prime Factorization of 12890

Prime Factorization of 12904

Now multiplying the highest exponent prime factors to calculate the LCM of 12890 and 12904.

LCM(12890,12904) = 2³ × 5¹ × 1289¹ × 1613¹
LCM(12890,12904) = 83166280