What is the Least Common Multiple of 72181 and 72197?

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 72181 and 72197 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72181 and 72197, than apply into the LCM equation.

GCF(72181,72197) = 1
LCM(72181,72197) = ( 72181 × 72197) / 1
LCM(72181,72197) = 5211251657 / 1
LCM(72181,72197) = 5211251657

Least Common Multiple (LCM) of 72181 and 72197 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72181 and 72197. First we will calculate the prime factors of 72181 and 72197.

Prime Factorization of 72181

Prime Factorization of 72197

Now multiplying the highest exponent prime factors to calculate the LCM of 72181 and 72197.

LCM(72181,72197) = 19¹ × 29¹ × 131¹ × 23¹ × 43¹ × 73¹
LCM(72181,72197) = 5211251657