What is the Least Common Multiple of 7028 and 7040?

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 7028 and 7040 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7028 and 7040, than apply into the LCM equation.

GCF(7028,7040) = 4
LCM(7028,7040) = ( 7028 × 7040) / 4
LCM(7028,7040) = 49477120 / 4
LCM(7028,7040) = 12369280

Least Common Multiple (LCM) of 7028 and 7040 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7028 and 7040. First we will calculate the prime factors of 7028 and 7040.

Prime Factorization of 7028

Prime Factorization of 7040

Now multiplying the highest exponent prime factors to calculate the LCM of 7028 and 7040.

LCM(7028,7040) = 2⁷ × 7¹ × 251¹ × 5¹ × 11¹
LCM(7028,7040) = 12369280