What is the Least Common Multiple of 73982 and 73990?

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 73982 and 73990 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 73982 and 73990, than apply into the LCM equation.

GCF(73982,73990) = 2
LCM(73982,73990) = ( 73982 × 73990) / 2
LCM(73982,73990) = 5473928180 / 2
LCM(73982,73990) = 2736964090

Least Common Multiple (LCM) of 73982 and 73990 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 73982 and 73990. First we will calculate the prime factors of 73982 and 73990.

Prime Factorization of 73982

Prime Factorization of 73990

Now multiplying the highest exponent prime factors to calculate the LCM of 73982 and 73990.

LCM(73982,73990) = 2¹ × 71¹ × 521¹ × 5¹ × 7² × 151¹
LCM(73982,73990) = 2736964090