What is the Least Common Multiple of 71639 and 71645?

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 71639 and 71645 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71639 and 71645, than apply into the LCM equation.

GCF(71639,71645) = 1
LCM(71639,71645) = ( 71639 × 71645) / 1
LCM(71639,71645) = 5132576155 / 1
LCM(71639,71645) = 5132576155

Least Common Multiple (LCM) of 71639 and 71645 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71639 and 71645. First we will calculate the prime factors of 71639 and 71645.

Prime Factorization of 71639

Prime Factorization of 71645

Now multiplying the highest exponent prime factors to calculate the LCM of 71639 and 71645.

LCM(71639,71645) = 71¹ × 1009¹ × 5¹ × 7¹ × 23¹ × 89¹
LCM(71639,71645) = 5132576155