What is the Least Common Multiple of 71140 and 71156?

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 71140 and 71156 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71140 and 71156, than apply into the LCM equation.

GCF(71140,71156) = 4
LCM(71140,71156) = ( 71140 × 71156) / 4
LCM(71140,71156) = 5062037840 / 4
LCM(71140,71156) = 1265509460

Least Common Multiple (LCM) of 71140 and 71156 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71140 and 71156. First we will calculate the prime factors of 71140 and 71156.

Prime Factorization of 71140

Prime Factorization of 71156

Now multiplying the highest exponent prime factors to calculate the LCM of 71140 and 71156.

LCM(71140,71156) = 2² × 5¹ × 3557¹ × 17789¹
LCM(71140,71156) = 1265509460