What is the Least Common Multiple of 65781 and 65787?

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 65781 and 65787 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65781 and 65787, than apply into the LCM equation.

GCF(65781,65787) = 3
LCM(65781,65787) = ( 65781 × 65787) / 3
LCM(65781,65787) = 4327534647 / 3
LCM(65781,65787) = 1442511549

Least Common Multiple (LCM) of 65781 and 65787 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65781 and 65787. First we will calculate the prime factors of 65781 and 65787.

Prime Factorization of 65781

Prime Factorization of 65787

Now multiplying the highest exponent prime factors to calculate the LCM of 65781 and 65787.

LCM(65781,65787) = 3² × 7309¹ × 21929¹
LCM(65781,65787) = 1442511549