What is the Least Common Multiple of 74781 and 74789?

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 74781 and 74789 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74781 and 74789, than apply into the LCM equation.

GCF(74781,74789) = 1
LCM(74781,74789) = ( 74781 × 74789) / 1
LCM(74781,74789) = 5592796209 / 1
LCM(74781,74789) = 5592796209

Least Common Multiple (LCM) of 74781 and 74789 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74781 and 74789. First we will calculate the prime factors of 74781 and 74789.

Prime Factorization of 74781

Prime Factorization of 74789

Now multiplying the highest exponent prime factors to calculate the LCM of 74781 and 74789.

LCM(74781,74789) = 3² × 7¹ × 1187¹ × 11¹ × 13¹ × 523¹
LCM(74781,74789) = 5592796209