What is the Least Common Multiple of 33620 and 33638?

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 33620 and 33638 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 33620 and 33638, than apply into the LCM equation.

GCF(33620,33638) = 2
LCM(33620,33638) = ( 33620 × 33638) / 2
LCM(33620,33638) = 1130909560 / 2
LCM(33620,33638) = 565454780

Least Common Multiple (LCM) of 33620 and 33638 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 33620 and 33638. First we will calculate the prime factors of 33620 and 33638.

Prime Factorization of 33620

Prime Factorization of 33638

Now multiplying the highest exponent prime factors to calculate the LCM of 33620 and 33638.

LCM(33620,33638) = 2² × 5¹ × 41² × 11² × 139¹
LCM(33620,33638) = 565454780