What is the Least Common Multiple of 30780 and 30792?

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 30780 and 30792 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30780 and 30792, than apply into the LCM equation.

GCF(30780,30792) = 12
LCM(30780,30792) = ( 30780 × 30792) / 12
LCM(30780,30792) = 947777760 / 12
LCM(30780,30792) = 78981480

Least Common Multiple (LCM) of 30780 and 30792 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30780 and 30792. First we will calculate the prime factors of 30780 and 30792.

Prime Factorization of 30780

Prime Factorization of 30792

Now multiplying the highest exponent prime factors to calculate the LCM of 30780 and 30792.

LCM(30780,30792) = 2³ × 3⁴ × 5¹ × 19¹ × 1283¹
LCM(30780,30792) = 78981480