What is the Least Common Multiple of 6821 and 6838?

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 6821 and 6838 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6821 and 6838, than apply into the LCM equation.

GCF(6821,6838) = 1
LCM(6821,6838) = ( 6821 × 6838) / 1
LCM(6821,6838) = 46641998 / 1
LCM(6821,6838) = 46641998

Least Common Multiple (LCM) of 6821 and 6838 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 6821 and 6838. First we will calculate the prime factors of 6821 and 6838.

Prime Factorization of 6821

Prime Factorization of 6838

Now multiplying the highest exponent prime factors to calculate the LCM of 6821 and 6838.

LCM(6821,6838) = 19¹ × 359¹ × 2¹ × 13¹ × 263¹
LCM(6821,6838) = 46641998