What is the Least Common Multiple of 78142 and 78148?

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 78142 and 78148 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78142 and 78148, than apply into the LCM equation.

GCF(78142,78148) = 2
LCM(78142,78148) = ( 78142 × 78148) / 2
LCM(78142,78148) = 6106641016 / 2
LCM(78142,78148) = 3053320508

Least Common Multiple (LCM) of 78142 and 78148 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78142 and 78148. First we will calculate the prime factors of 78142 and 78148.

Prime Factorization of 78142

Prime Factorization of 78148

Now multiplying the highest exponent prime factors to calculate the LCM of 78142 and 78148.

LCM(78142,78148) = 2² × 89¹ × 439¹ × 7¹ × 2791¹
LCM(78142,78148) = 3053320508