What is the Least Common Multiple of 39040 and 39060?

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 39040 and 39060 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39040 and 39060, than apply into the LCM equation.

GCF(39040,39060) = 20
LCM(39040,39060) = ( 39040 × 39060) / 20
LCM(39040,39060) = 1524902400 / 20
LCM(39040,39060) = 76245120

Least Common Multiple (LCM) of 39040 and 39060 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39040 and 39060. First we will calculate the prime factors of 39040 and 39060.

Prime Factorization of 39040

Prime Factorization of 39060

Now multiplying the highest exponent prime factors to calculate the LCM of 39040 and 39060.

LCM(39040,39060) = 2⁷ × 5¹ × 61¹ × 3² × 7¹ × 31¹
LCM(39040,39060) = 76245120