What is the Least Common Multiple of 7478 and 7486?

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 7478 and 7486 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7478 and 7486, than apply into the LCM equation.

GCF(7478,7486) = 2
LCM(7478,7486) = ( 7478 × 7486) / 2
LCM(7478,7486) = 55980308 / 2
LCM(7478,7486) = 27990154

Least Common Multiple (LCM) of 7478 and 7486 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7478 and 7486. First we will calculate the prime factors of 7478 and 7486.

Prime Factorization of 7478

Prime Factorization of 7486

Now multiplying the highest exponent prime factors to calculate the LCM of 7478 and 7486.

LCM(7478,7486) = 2¹ × 3739¹ × 19¹ × 197¹
LCM(7478,7486) = 27990154