What is the Least Common Multiple of 79880 and 79890?

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 79880 and 79890 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79880 and 79890, than apply into the LCM equation.

GCF(79880,79890) = 10
LCM(79880,79890) = ( 79880 × 79890) / 10
LCM(79880,79890) = 6381613200 / 10
LCM(79880,79890) = 638161320

Least Common Multiple (LCM) of 79880 and 79890 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79880 and 79890. First we will calculate the prime factors of 79880 and 79890.

Prime Factorization of 79880

Prime Factorization of 79890

Now multiplying the highest exponent prime factors to calculate the LCM of 79880 and 79890.

LCM(79880,79890) = 2³ × 5¹ × 1997¹ × 3¹ × 2663¹
LCM(79880,79890) = 638161320