What is the Least Common Multiple of 98800 and 98820?

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 98800 and 98820 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 98800 and 98820, than apply into the LCM equation.

GCF(98800,98820) = 20
LCM(98800,98820) = ( 98800 × 98820) / 20
LCM(98800,98820) = 9763416000 / 20
LCM(98800,98820) = 488170800

Least Common Multiple (LCM) of 98800 and 98820 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 98800 and 98820. First we will calculate the prime factors of 98800 and 98820.

Prime Factorization of 98800

Prime Factorization of 98820

Now multiplying the highest exponent prime factors to calculate the LCM of 98800 and 98820.

LCM(98800,98820) = 2⁴ × 5² × 13¹ × 19¹ × 3⁴ × 61¹
LCM(98800,98820) = 488170800