What is the Least Common Multiple of 75815 and 75821?

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 75815 and 75821 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 75815 and 75821, than apply into the LCM equation.

GCF(75815,75821) = 1
LCM(75815,75821) = ( 75815 × 75821) / 1
LCM(75815,75821) = 5748369115 / 1
LCM(75815,75821) = 5748369115

Least Common Multiple (LCM) of 75815 and 75821 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 75815 and 75821. First we will calculate the prime factors of 75815 and 75821.

Prime Factorization of 75815

Prime Factorization of 75821

Now multiplying the highest exponent prime factors to calculate the LCM of 75815 and 75821.

LCM(75815,75821) = 5¹ × 59¹ × 257¹ × 75821¹
LCM(75815,75821) = 5748369115