What is the Least Common Multiple of 8403 and 8407?

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 8403 and 8407 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8403 and 8407, than apply into the LCM equation.

GCF(8403,8407) = 1
LCM(8403,8407) = ( 8403 × 8407) / 1
LCM(8403,8407) = 70644021 / 1
LCM(8403,8407) = 70644021

Least Common Multiple (LCM) of 8403 and 8407 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8403 and 8407. First we will calculate the prime factors of 8403 and 8407.

Prime Factorization of 8403

Prime Factorization of 8407

Now multiplying the highest exponent prime factors to calculate the LCM of 8403 and 8407.

LCM(8403,8407) = 3¹ × 2801¹ × 7¹ × 1201¹
LCM(8403,8407) = 70644021