What is the Least Common Multiple of 71315 and 71321?

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 71315 and 71321 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71315 and 71321, than apply into the LCM equation.

GCF(71315,71321) = 1
LCM(71315,71321) = ( 71315 × 71321) / 1
LCM(71315,71321) = 5086257115 / 1
LCM(71315,71321) = 5086257115

Least Common Multiple (LCM) of 71315 and 71321 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71315 and 71321. First we will calculate the prime factors of 71315 and 71321.

Prime Factorization of 71315

Prime Factorization of 71321

Now multiplying the highest exponent prime factors to calculate the LCM of 71315 and 71321.

LCM(71315,71321) = 5¹ × 17¹ × 839¹ × 73¹ × 977¹
LCM(71315,71321) = 5086257115