What is the Least Common Multiple of 71243 and 71257?

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 71243 and 71257 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71243 and 71257, than apply into the LCM equation.

GCF(71243,71257) = 1
LCM(71243,71257) = ( 71243 × 71257) / 1
LCM(71243,71257) = 5076562451 / 1
LCM(71243,71257) = 5076562451

Least Common Multiple (LCM) of 71243 and 71257 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71243 and 71257. First we will calculate the prime factors of 71243 and 71257.

Prime Factorization of 71243

Prime Factorization of 71257

Now multiplying the highest exponent prime factors to calculate the LCM of 71243 and 71257.

LCM(71243,71257) = 191¹ × 373¹ × 71257¹
LCM(71243,71257) = 5076562451