What is the Least Common Multiple of 42330 and 42340?

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 42330 and 42340 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42330 and 42340, than apply into the LCM equation.

GCF(42330,42340) = 10
LCM(42330,42340) = ( 42330 × 42340) / 10
LCM(42330,42340) = 1792252200 / 10
LCM(42330,42340) = 179225220

Least Common Multiple (LCM) of 42330 and 42340 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42330 and 42340. First we will calculate the prime factors of 42330 and 42340.

Prime Factorization of 42330

Prime Factorization of 42340

Now multiplying the highest exponent prime factors to calculate the LCM of 42330 and 42340.

LCM(42330,42340) = 2² × 3¹ × 5¹ × 17¹ × 83¹ × 29¹ × 73¹
LCM(42330,42340) = 179225220