What is the Least Common Multiple of 81178 and 81185?

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 81178 and 81185 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81178 and 81185, than apply into the LCM equation.

GCF(81178,81185) = 1
LCM(81178,81185) = ( 81178 × 81185) / 1
LCM(81178,81185) = 6590435930 / 1
LCM(81178,81185) = 6590435930

Least Common Multiple (LCM) of 81178 and 81185 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81178 and 81185. First we will calculate the prime factors of 81178 and 81185.

Prime Factorization of 81178

Prime Factorization of 81185

Now multiplying the highest exponent prime factors to calculate the LCM of 81178 and 81185.

LCM(81178,81185) = 2¹ × 37¹ × 1097¹ × 5¹ × 13¹ × 1249¹
LCM(81178,81185) = 6590435930