What is the Least Common Multiple of 31820 and 31836?

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 31820 and 31836 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31820 and 31836, than apply into the LCM equation.

GCF(31820,31836) = 4
LCM(31820,31836) = ( 31820 × 31836) / 4
LCM(31820,31836) = 1013021520 / 4
LCM(31820,31836) = 253255380

Least Common Multiple (LCM) of 31820 and 31836 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31820 and 31836. First we will calculate the prime factors of 31820 and 31836.

Prime Factorization of 31820

Prime Factorization of 31836

Now multiplying the highest exponent prime factors to calculate the LCM of 31820 and 31836.

LCM(31820,31836) = 2² × 5¹ × 37¹ × 43¹ × 3¹ × 7¹ × 379¹
LCM(31820,31836) = 253255380