What is the Least Common Multiple of 40490 and 40506?

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 40506 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 40506, than apply into the LCM equation.

GCF(40490,40506) = 2
LCM(40490,40506) = ( 40490 × 40506) / 2
LCM(40490,40506) = 1640087940 / 2
LCM(40490,40506) = 820043970

Least Common Multiple (LCM) of 40490 and 40506 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40490 and 40506. First we will calculate the prime factors of 40490 and 40506.

Prime Factorization of 40490

Prime Factorization of 40506

Now multiplying the highest exponent prime factors to calculate the LCM of 40490 and 40506.

LCM(40490,40506) = 2¹ × 5¹ × 4049¹ × 3¹ × 43¹ × 157¹
LCM(40490,40506) = 820043970