What is the Least Common Multiple of 91991 and 92009?

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 91991 and 92009 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91991 and 92009, than apply into the LCM equation.

GCF(91991,92009) = 1
LCM(91991,92009) = ( 91991 × 92009) / 1
LCM(91991,92009) = 8463999919 / 1
LCM(91991,92009) = 8463999919

Least Common Multiple (LCM) of 91991 and 92009 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91991 and 92009. First we will calculate the prime factors of 91991 and 92009.

Prime Factorization of 91991

Prime Factorization of 92009

Now multiplying the highest exponent prime factors to calculate the LCM of 91991 and 92009.

LCM(91991,92009) = 67¹ × 1373¹ × 92009¹
LCM(91991,92009) = 8463999919