What is the Least Common Multiple of 65491 and 65505?

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 65491 and 65505 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65491 and 65505, than apply into the LCM equation.

GCF(65491,65505) = 1
LCM(65491,65505) = ( 65491 × 65505) / 1
LCM(65491,65505) = 4289987955 / 1
LCM(65491,65505) = 4289987955

Least Common Multiple (LCM) of 65491 and 65505 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65491 and 65505. First we will calculate the prime factors of 65491 and 65505.

Prime Factorization of 65491

Prime Factorization of 65505

Now multiplying the highest exponent prime factors to calculate the LCM of 65491 and 65505.

LCM(65491,65505) = 79¹ × 829¹ × 3¹ × 5¹ × 11¹ × 397¹
LCM(65491,65505) = 4289987955