What is the Least Common Multiple of 6990 and 7008?

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 6990 and 7008 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6990 and 7008, than apply into the LCM equation.

GCF(6990,7008) = 6
LCM(6990,7008) = ( 6990 × 7008) / 6
LCM(6990,7008) = 48985920 / 6
LCM(6990,7008) = 8164320

Least Common Multiple (LCM) of 6990 and 7008 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6990 and 7008. First we will calculate the prime factors of 6990 and 7008.

Prime Factorization of 6990

Prime Factorization of 7008

Now multiplying the highest exponent prime factors to calculate the LCM of 6990 and 7008.

LCM(6990,7008) = 2⁵ × 3¹ × 5¹ × 233¹ × 73¹
LCM(6990,7008) = 8164320