What is the Least Common Multiple of 73978 and 73994?

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 73978 and 73994 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 73978 and 73994, than apply into the LCM equation.

GCF(73978,73994) = 2
LCM(73978,73994) = ( 73978 × 73994) / 2
LCM(73978,73994) = 5473928132 / 2
LCM(73978,73994) = 2736964066

Least Common Multiple (LCM) of 73978 and 73994 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 73978 and 73994. First we will calculate the prime factors of 73978 and 73994.

Prime Factorization of 73978

Prime Factorization of 73994

Now multiplying the highest exponent prime factors to calculate the LCM of 73978 and 73994.

LCM(73978,73994) = 2¹ × 47¹ × 787¹ × 36997¹
LCM(73978,73994) = 2736964066