What is the Least Common Multiple of 65770 and 65781?

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 65770 and 65781 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65770 and 65781, than apply into the LCM equation.

GCF(65770,65781) = 1
LCM(65770,65781) = ( 65770 × 65781) / 1
LCM(65770,65781) = 4326416370 / 1
LCM(65770,65781) = 4326416370

Least Common Multiple (LCM) of 65770 and 65781 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65770 and 65781. First we will calculate the prime factors of 65770 and 65781.

Prime Factorization of 65770

Prime Factorization of 65781

Now multiplying the highest exponent prime factors to calculate the LCM of 65770 and 65781.

LCM(65770,65781) = 2¹ × 5¹ × 6577¹ × 3² × 7309¹
LCM(65770,65781) = 4326416370