What is the Least Common Multiple of 70785 and 70791?

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 70785 and 70791 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70785 and 70791, than apply into the LCM equation.

GCF(70785,70791) = 3
LCM(70785,70791) = ( 70785 × 70791) / 3
LCM(70785,70791) = 5010940935 / 3
LCM(70785,70791) = 1670313645

Least Common Multiple (LCM) of 70785 and 70791 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70785 and 70791. First we will calculate the prime factors of 70785 and 70791.

Prime Factorization of 70785

Prime Factorization of 70791

Now multiplying the highest exponent prime factors to calculate the LCM of 70785 and 70791.

LCM(70785,70791) = 3² × 5¹ × 11² × 13¹ × 7¹ × 3371¹
LCM(70785,70791) = 1670313645