What is the Least Common Multiple of 51985 and 51990?

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 51985 and 51990 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51985 and 51990, than apply into the LCM equation.

GCF(51985,51990) = 5
LCM(51985,51990) = ( 51985 × 51990) / 5
LCM(51985,51990) = 2702700150 / 5
LCM(51985,51990) = 540540030

Least Common Multiple (LCM) of 51985 and 51990 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51985 and 51990. First we will calculate the prime factors of 51985 and 51990.

Prime Factorization of 51985

Prime Factorization of 51990

Now multiplying the highest exponent prime factors to calculate the LCM of 51985 and 51990.

LCM(51985,51990) = 5¹ × 37¹ × 281¹ × 2¹ × 3¹ × 1733¹
LCM(51985,51990) = 540540030