What is the Least Common Multiple of 71955 and 71968?

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 71955 and 71968 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71955 and 71968, than apply into the LCM equation.

GCF(71955,71968) = 13
LCM(71955,71968) = ( 71955 × 71968) / 13
LCM(71955,71968) = 5178457440 / 13
LCM(71955,71968) = 398342880

Least Common Multiple (LCM) of 71955 and 71968 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71955 and 71968. First we will calculate the prime factors of 71955 and 71968.

Prime Factorization of 71955

Prime Factorization of 71968

Now multiplying the highest exponent prime factors to calculate the LCM of 71955 and 71968.

LCM(71955,71968) = 3³ × 5¹ × 13¹ × 41¹ × 2⁵ × 173¹
LCM(71955,71968) = 398342880