What is the Least Common Multiple of 20731 and 20741?

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 20731 and 20741 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20731 and 20741, than apply into the LCM equation.

GCF(20731,20741) = 1
LCM(20731,20741) = ( 20731 × 20741) / 1
LCM(20731,20741) = 429981671 / 1
LCM(20731,20741) = 429981671

Least Common Multiple (LCM) of 20731 and 20741 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20731 and 20741. First we will calculate the prime factors of 20731 and 20741.

Prime Factorization of 20731

Prime Factorization of 20741

Now multiplying the highest exponent prime factors to calculate the LCM of 20731 and 20741.

LCM(20731,20741) = 20731¹ × 7¹ × 2963¹
LCM(20731,20741) = 429981671