What is the Least Common Multiple of 81340 and 81347?

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 81340 and 81347 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81340 and 81347, than apply into the LCM equation.

GCF(81340,81347) = 7
LCM(81340,81347) = ( 81340 × 81347) / 7
LCM(81340,81347) = 6616764980 / 7
LCM(81340,81347) = 945252140

Least Common Multiple (LCM) of 81340 and 81347 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 81340 and 81347. First we will calculate the prime factors of 81340 and 81347.

Prime Factorization of 81340

Prime Factorization of 81347

Now multiplying the highest exponent prime factors to calculate the LCM of 81340 and 81347.

LCM(81340,81347) = 2² × 5¹ × 7² × 83¹ × 11621¹
LCM(81340,81347) = 945252140