What is the Least Common Multiple of 70768 and 70780?

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 70768 and 70780 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 70768 and 70780, than apply into the LCM equation.

GCF(70768,70780) = 4
LCM(70768,70780) = ( 70768 × 70780) / 4
LCM(70768,70780) = 5008959040 / 4
LCM(70768,70780) = 1252239760

Least Common Multiple (LCM) of 70768 and 70780 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 70768 and 70780. First we will calculate the prime factors of 70768 and 70780.

Prime Factorization of 70768

Prime Factorization of 70780

Now multiplying the highest exponent prime factors to calculate the LCM of 70768 and 70780.

LCM(70768,70780) = 2⁴ × 4423¹ × 5¹ × 3539¹
LCM(70768,70780) = 1252239760