What is the Least Common Multiple of 39630 and 39643?

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 39630 and 39643 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39630 and 39643, than apply into the LCM equation.

GCF(39630,39643) = 1
LCM(39630,39643) = ( 39630 × 39643) / 1
LCM(39630,39643) = 1571052090 / 1
LCM(39630,39643) = 1571052090

Least Common Multiple (LCM) of 39630 and 39643 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39630 and 39643. First we will calculate the prime factors of 39630 and 39643.

Prime Factorization of 39630

Prime Factorization of 39643

Now multiplying the highest exponent prime factors to calculate the LCM of 39630 and 39643.

LCM(39630,39643) = 2¹ × 3¹ × 5¹ × 1321¹ × 29¹ × 1367¹
LCM(39630,39643) = 1571052090