What is the Least Common Multiple of 40690 and 40709?

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 40690 and 40709 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40690 and 40709, than apply into the LCM equation.

GCF(40690,40709) = 1
LCM(40690,40709) = ( 40690 × 40709) / 1
LCM(40690,40709) = 1656449210 / 1
LCM(40690,40709) = 1656449210

Least Common Multiple (LCM) of 40690 and 40709 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40690 and 40709. First we will calculate the prime factors of 40690 and 40709.

Prime Factorization of 40690

Prime Factorization of 40709

Now multiplying the highest exponent prime factors to calculate the LCM of 40690 and 40709.

LCM(40690,40709) = 2¹ × 5¹ × 13¹ × 313¹ × 40709¹
LCM(40690,40709) = 1656449210