What is the Least Common Multiple of 72105 and 72124?

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 72105 and 72124 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72105 and 72124, than apply into the LCM equation.

GCF(72105,72124) = 19
LCM(72105,72124) = ( 72105 × 72124) / 19
LCM(72105,72124) = 5200501020 / 19
LCM(72105,72124) = 273710580

Least Common Multiple (LCM) of 72105 and 72124 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72105 and 72124. First we will calculate the prime factors of 72105 and 72124.

Prime Factorization of 72105

Prime Factorization of 72124

Now multiplying the highest exponent prime factors to calculate the LCM of 72105 and 72124.

LCM(72105,72124) = 3¹ × 5¹ × 11¹ × 19¹ × 23¹ × 2² × 13¹ × 73¹
LCM(72105,72124) = 273710580