What is the Least Common Multiple of 55760 and 55765?

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 55760 and 55765 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 55760 and 55765, than apply into the LCM equation.

GCF(55760,55765) = 5
LCM(55760,55765) = ( 55760 × 55765) / 5
LCM(55760,55765) = 3109456400 / 5
LCM(55760,55765) = 621891280

Least Common Multiple (LCM) of 55760 and 55765 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 55760 and 55765. First we will calculate the prime factors of 55760 and 55765.

Prime Factorization of 55760

Prime Factorization of 55765

Now multiplying the highest exponent prime factors to calculate the LCM of 55760 and 55765.

LCM(55760,55765) = 2⁴ × 5¹ × 17¹ × 41¹ × 19¹ × 587¹
LCM(55760,55765) = 621891280