What is the Least Common Multiple of 81508 and 81522?

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 81508 and 81522 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81508 and 81522, than apply into the LCM equation.

GCF(81508,81522) = 14
LCM(81508,81522) = ( 81508 × 81522) / 14
LCM(81508,81522) = 6644695176 / 14
LCM(81508,81522) = 474621084

Least Common Multiple (LCM) of 81508 and 81522 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81508 and 81522. First we will calculate the prime factors of 81508 and 81522.

Prime Factorization of 81508

Prime Factorization of 81522

Now multiplying the highest exponent prime factors to calculate the LCM of 81508 and 81522.

LCM(81508,81522) = 2² × 7¹ × 41¹ × 71¹ × 3² × 647¹
LCM(81508,81522) = 474621084