What is the Least Common Multiple of 67968 and 67972?

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 67972 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 67972, than apply into the LCM equation.

GCF(67968,67972) = 4
LCM(67968,67972) = ( 67968 × 67972) / 4
LCM(67968,67972) = 4619920896 / 4
LCM(67968,67972) = 1154980224

Least Common Multiple (LCM) of 67968 and 67972 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67968 and 67972. First we will calculate the prime factors of 67968 and 67972.

Prime Factorization of 67968

Prime Factorization of 67972

Now multiplying the highest exponent prime factors to calculate the LCM of 67968 and 67972.

LCM(67968,67972) = 2⁷ × 3² × 59¹ × 16993¹
LCM(67968,67972) = 1154980224