What is the Least Common Multiple of 56765 and 56780?

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 56765 and 56780 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 56765 and 56780, than apply into the LCM equation.

GCF(56765,56780) = 5
LCM(56765,56780) = ( 56765 × 56780) / 5
LCM(56765,56780) = 3223116700 / 5
LCM(56765,56780) = 644623340

Least Common Multiple (LCM) of 56765 and 56780 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 56765 and 56780. First we will calculate the prime factors of 56765 and 56780.

Prime Factorization of 56765

Prime Factorization of 56780

Now multiplying the highest exponent prime factors to calculate the LCM of 56765 and 56780.

LCM(56765,56780) = 5¹ × 11353¹ × 2² × 17¹ × 167¹
LCM(56765,56780) = 644623340