What is the Least Common Multiple of 86780 and 86789?

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 86780 and 86789 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86780 and 86789, than apply into the LCM equation.

GCF(86780,86789) = 1
LCM(86780,86789) = ( 86780 × 86789) / 1
LCM(86780,86789) = 7531549420 / 1
LCM(86780,86789) = 7531549420

Least Common Multiple (LCM) of 86780 and 86789 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 86780 and 86789. First we will calculate the prime factors of 86780 and 86789.

Prime Factorization of 86780

Prime Factorization of 86789

Now multiplying the highest exponent prime factors to calculate the LCM of 86780 and 86789.

LCM(86780,86789) = 2² × 5¹ × 4339¹ × 59¹ × 1471¹
LCM(86780,86789) = 7531549420