What is the Least Common Multiple of 43121 and 43138?

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 43121 and 43138 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 43121 and 43138, than apply into the LCM equation.

GCF(43121,43138) = 1
LCM(43121,43138) = ( 43121 × 43138) / 1
LCM(43121,43138) = 1860153698 / 1
LCM(43121,43138) = 1860153698

Least Common Multiple (LCM) of 43121 and 43138 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 43121 and 43138. First we will calculate the prime factors of 43121 and 43138.

Prime Factorization of 43121

Prime Factorization of 43138

Now multiplying the highest exponent prime factors to calculate the LCM of 43121 and 43138.

LCM(43121,43138) = 13¹ × 31¹ × 107¹ × 2¹ × 21569¹
LCM(43121,43138) = 1860153698