What is the Least Common Multiple of 67968 and 67985?

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 67968 and 67985 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67968 and 67985, than apply into the LCM equation.

GCF(67968,67985) = 1
LCM(67968,67985) = ( 67968 × 67985) / 1
LCM(67968,67985) = 4620804480 / 1
LCM(67968,67985) = 4620804480

Least Common Multiple (LCM) of 67968 and 67985 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67968 and 67985. First we will calculate the prime factors of 67968 and 67985.

Prime Factorization of 67968

Prime Factorization of 67985

Now multiplying the highest exponent prime factors to calculate the LCM of 67968 and 67985.

LCM(67968,67985) = 2⁷ × 3² × 59¹ × 5¹ × 13597¹
LCM(67968,67985) = 4620804480