What is the Least Common Multiple of 71221 and 71238?

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 71221 and 71238 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71221 and 71238, than apply into the LCM equation.

GCF(71221,71238) = 1
LCM(71221,71238) = ( 71221 × 71238) / 1
LCM(71221,71238) = 5073641598 / 1
LCM(71221,71238) = 5073641598

Least Common Multiple (LCM) of 71221 and 71238 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71221 and 71238. First we will calculate the prime factors of 71221 and 71238.

Prime Factorization of 71221

Prime Factorization of 71238

Now multiplying the highest exponent prime factors to calculate the LCM of 71221 and 71238.

LCM(71221,71238) = 67¹ × 1063¹ × 2¹ × 3¹ × 31¹ × 383¹
LCM(71221,71238) = 5073641598