What is the Least Common Multiple of 7040 and 7060?

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 7040 and 7060 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7040 and 7060, than apply into the LCM equation.

GCF(7040,7060) = 20
LCM(7040,7060) = ( 7040 × 7060) / 20
LCM(7040,7060) = 49702400 / 20
LCM(7040,7060) = 2485120

Least Common Multiple (LCM) of 7040 and 7060 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7040 and 7060. First we will calculate the prime factors of 7040 and 7060.

Prime Factorization of 7040

Prime Factorization of 7060

Now multiplying the highest exponent prime factors to calculate the LCM of 7040 and 7060.

LCM(7040,7060) = 2⁷ × 5¹ × 11¹ × 353¹
LCM(7040,7060) = 2485120