What is the Least Common Multiple of 64309 and 64321?

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 64309 and 64321 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64309 and 64321, than apply into the LCM equation.

GCF(64309,64321) = 1
LCM(64309,64321) = ( 64309 × 64321) / 1
LCM(64309,64321) = 4136419189 / 1
LCM(64309,64321) = 4136419189

Least Common Multiple (LCM) of 64309 and 64321 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64309 and 64321. First we will calculate the prime factors of 64309 and 64321.

Prime Factorization of 64309

Prime Factorization of 64321

Now multiplying the highest exponent prime factors to calculate the LCM of 64309 and 64321.

LCM(64309,64321) = 7¹ × 9187¹ × 131¹ × 491¹
LCM(64309,64321) = 4136419189