What is the Least Common Multiple of 65540 and 65555?

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 65540 and 65555 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65540 and 65555, than apply into the LCM equation.

GCF(65540,65555) = 5
LCM(65540,65555) = ( 65540 × 65555) / 5
LCM(65540,65555) = 4296474700 / 5
LCM(65540,65555) = 859294940

Least Common Multiple (LCM) of 65540 and 65555 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65540 and 65555. First we will calculate the prime factors of 65540 and 65555.

Prime Factorization of 65540

Prime Factorization of 65555

Now multiplying the highest exponent prime factors to calculate the LCM of 65540 and 65555.

LCM(65540,65555) = 2² × 5¹ × 29¹ × 113¹ × 7¹ × 1873¹
LCM(65540,65555) = 859294940