What is the Least Common Multiple of 71380 and 71388?

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 71380 and 71388 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71380 and 71388, than apply into the LCM equation.

GCF(71380,71388) = 4
LCM(71380,71388) = ( 71380 × 71388) / 4
LCM(71380,71388) = 5095675440 / 4
LCM(71380,71388) = 1273918860

Least Common Multiple (LCM) of 71380 and 71388 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71380 and 71388. First we will calculate the prime factors of 71380 and 71388.

Prime Factorization of 71380

Prime Factorization of 71388

Now multiplying the highest exponent prime factors to calculate the LCM of 71380 and 71388.

LCM(71380,71388) = 2² × 5¹ × 43¹ × 83¹ × 3³ × 661¹
LCM(71380,71388) = 1273918860