What is the Least Common Multiple of 42645 and 42663?

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 42645 and 42663 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42645 and 42663, than apply into the LCM equation.

GCF(42645,42663) = 3
LCM(42645,42663) = ( 42645 × 42663) / 3
LCM(42645,42663) = 1819363635 / 3
LCM(42645,42663) = 606454545

Least Common Multiple (LCM) of 42645 and 42663 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42645 and 42663. First we will calculate the prime factors of 42645 and 42663.

Prime Factorization of 42645

Prime Factorization of 42663

Now multiplying the highest exponent prime factors to calculate the LCM of 42645 and 42663.

LCM(42645,42663) = 3¹ × 5¹ × 2843¹ × 14221¹
LCM(42645,42663) = 606454545