What is the Least Common Multiple of 66380 and 66388?

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 66380 and 66388 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66380 and 66388, than apply into the LCM equation.

GCF(66380,66388) = 4
LCM(66380,66388) = ( 66380 × 66388) / 4
LCM(66380,66388) = 4406835440 / 4
LCM(66380,66388) = 1101708860

Least Common Multiple (LCM) of 66380 and 66388 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66380 and 66388. First we will calculate the prime factors of 66380 and 66388.

Prime Factorization of 66380

Prime Factorization of 66388

Now multiplying the highest exponent prime factors to calculate the LCM of 66380 and 66388.

LCM(66380,66388) = 2² × 5¹ × 3319¹ × 7¹ × 2371¹
LCM(66380,66388) = 1101708860