What is the Least Common Multiple of 64540 and 64556?

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 64540 and 64556 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64540 and 64556, than apply into the LCM equation.

GCF(64540,64556) = 4
LCM(64540,64556) = ( 64540 × 64556) / 4
LCM(64540,64556) = 4166444240 / 4
LCM(64540,64556) = 1041611060

Least Common Multiple (LCM) of 64540 and 64556 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64540 and 64556. First we will calculate the prime factors of 64540 and 64556.

Prime Factorization of 64540

Prime Factorization of 64556

Now multiplying the highest exponent prime factors to calculate the LCM of 64540 and 64556.

LCM(64540,64556) = 2² × 5¹ × 7¹ × 461¹ × 16139¹
LCM(64540,64556) = 1041611060