What is the Least Common Multiple of 70890 and 70904?

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 70890 and 70904 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70890 and 70904, than apply into the LCM equation.

GCF(70890,70904) = 2
LCM(70890,70904) = ( 70890 × 70904) / 2
LCM(70890,70904) = 5026384560 / 2
LCM(70890,70904) = 2513192280

Least Common Multiple (LCM) of 70890 and 70904 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70890 and 70904. First we will calculate the prime factors of 70890 and 70904.

Prime Factorization of 70890

Prime Factorization of 70904

Now multiplying the highest exponent prime factors to calculate the LCM of 70890 and 70904.

LCM(70890,70904) = 2³ × 3¹ × 5¹ × 17¹ × 139¹ × 8863¹
LCM(70890,70904) = 2513192280