What is the Least Common Multiple of 30942 and 30960?

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 30942 and 30960 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30942 and 30960, than apply into the LCM equation.

GCF(30942,30960) = 18
LCM(30942,30960) = ( 30942 × 30960) / 18
LCM(30942,30960) = 957964320 / 18
LCM(30942,30960) = 53220240

Least Common Multiple (LCM) of 30942 and 30960 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30942 and 30960. First we will calculate the prime factors of 30942 and 30960.

Prime Factorization of 30942

Prime Factorization of 30960

Now multiplying the highest exponent prime factors to calculate the LCM of 30942 and 30960.

LCM(30942,30960) = 2⁴ × 3⁴ × 191¹ × 5¹ × 43¹
LCM(30942,30960) = 53220240