What is the Least Common Multiple of 42643 and 42648?

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 42643 and 42648 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42643 and 42648, than apply into the LCM equation.

GCF(42643,42648) = 1
LCM(42643,42648) = ( 42643 × 42648) / 1
LCM(42643,42648) = 1818638664 / 1
LCM(42643,42648) = 1818638664

Least Common Multiple (LCM) of 42643 and 42648 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42643 and 42648. First we will calculate the prime factors of 42643 and 42648.

Prime Factorization of 42643

Prime Factorization of 42648

Now multiplying the highest exponent prime factors to calculate the LCM of 42643 and 42648.

LCM(42643,42648) = 42643¹ × 2³ × 3¹ × 1777¹
LCM(42643,42648) = 1818638664