What is the Least Common Multiple of 42821 and 42829?

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 42821 and 42829 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42821 and 42829, than apply into the LCM equation.

GCF(42821,42829) = 1
LCM(42821,42829) = ( 42821 × 42829) / 1
LCM(42821,42829) = 1833980609 / 1
LCM(42821,42829) = 1833980609

Least Common Multiple (LCM) of 42821 and 42829 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42821 and 42829. First we will calculate the prime factors of 42821 and 42829.

Prime Factorization of 42821

Prime Factorization of 42829

Now multiplying the highest exponent prime factors to calculate the LCM of 42821 and 42829.

LCM(42821,42829) = 42821¹ × 42829¹
LCM(42821,42829) = 1833980609