What is the Least Common Multiple of 39490 and 39506?

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 39490 and 39506 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39490 and 39506, than apply into the LCM equation.

GCF(39490,39506) = 2
LCM(39490,39506) = ( 39490 × 39506) / 2
LCM(39490,39506) = 1560091940 / 2
LCM(39490,39506) = 780045970

Least Common Multiple (LCM) of 39490 and 39506 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39490 and 39506. First we will calculate the prime factors of 39490 and 39506.

Prime Factorization of 39490

Prime Factorization of 39506

Now multiplying the highest exponent prime factors to calculate the LCM of 39490 and 39506.

LCM(39490,39506) = 2¹ × 5¹ × 11¹ × 359¹ × 19753¹
LCM(39490,39506) = 780045970