What is the Least Common Multiple of 40490 and 40505?

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 40490 and 40505 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40490 and 40505, than apply into the LCM equation.

GCF(40490,40505) = 5
LCM(40490,40505) = ( 40490 × 40505) / 5
LCM(40490,40505) = 1640047450 / 5
LCM(40490,40505) = 328009490

Least Common Multiple (LCM) of 40490 and 40505 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40490 and 40505. First we will calculate the prime factors of 40490 and 40505.

Prime Factorization of 40490

Prime Factorization of 40505

Now multiplying the highest exponent prime factors to calculate the LCM of 40490 and 40505.

LCM(40490,40505) = 2¹ × 5¹ × 4049¹ × 8101¹
LCM(40490,40505) = 328009490