What is the Least Common Multiple of 71780 and 71789?

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 71780 and 71789 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71780 and 71789, than apply into the LCM equation.

GCF(71780,71789) = 1
LCM(71780,71789) = ( 71780 × 71789) / 1
LCM(71780,71789) = 5153014420 / 1
LCM(71780,71789) = 5153014420

Least Common Multiple (LCM) of 71780 and 71789 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71780 and 71789. First we will calculate the prime factors of 71780 and 71789.

Prime Factorization of 71780

Prime Factorization of 71789

Now multiplying the highest exponent prime factors to calculate the LCM of 71780 and 71789.

LCM(71780,71789) = 2² × 5¹ × 37¹ × 97¹ × 71789¹
LCM(71780,71789) = 5153014420