What is the Least Common Multiple of 82985 and 82990?

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 82985 and 82990 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 82985 and 82990, than apply into the LCM equation.

GCF(82985,82990) = 5
LCM(82985,82990) = ( 82985 × 82990) / 5
LCM(82985,82990) = 6886925150 / 5
LCM(82985,82990) = 1377385030

Least Common Multiple (LCM) of 82985 and 82990 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 82985 and 82990. First we will calculate the prime factors of 82985 and 82990.

Prime Factorization of 82985

Prime Factorization of 82990

Now multiplying the highest exponent prime factors to calculate the LCM of 82985 and 82990.

LCM(82985,82990) = 5¹ × 7¹ × 2371¹ × 2¹ × 43¹ × 193¹
LCM(82985,82990) = 1377385030