What is the Least Common Multiple of 66409 and 66428?

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 66409 and 66428 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66409 and 66428, than apply into the LCM equation.

GCF(66409,66428) = 1
LCM(66409,66428) = ( 66409 × 66428) / 1
LCM(66409,66428) = 4411417052 / 1
LCM(66409,66428) = 4411417052

Least Common Multiple (LCM) of 66409 and 66428 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66409 and 66428. First we will calculate the prime factors of 66409 and 66428.

Prime Factorization of 66409

Prime Factorization of 66428

Now multiplying the highest exponent prime factors to calculate the LCM of 66409 and 66428.

LCM(66409,66428) = 7¹ × 53¹ × 179¹ × 2² × 16607¹
LCM(66409,66428) = 4411417052