What is the Least Common Multiple of 64656 and 64670?

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 64656 and 64670 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64656 and 64670, than apply into the LCM equation.

GCF(64656,64670) = 2
LCM(64656,64670) = ( 64656 × 64670) / 2
LCM(64656,64670) = 4181303520 / 2
LCM(64656,64670) = 2090651760

Least Common Multiple (LCM) of 64656 and 64670 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64656 and 64670. First we will calculate the prime factors of 64656 and 64670.

Prime Factorization of 64656

Prime Factorization of 64670

Now multiplying the highest exponent prime factors to calculate the LCM of 64656 and 64670.

LCM(64656,64670) = 2⁴ × 3² × 449¹ × 5¹ × 29¹ × 223¹
LCM(64656,64670) = 2090651760