What is the Least Common Multiple of 65281 and 65285?

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 65281 and 65285 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65281 and 65285, than apply into the LCM equation.

GCF(65281,65285) = 1
LCM(65281,65285) = ( 65281 × 65285) / 1
LCM(65281,65285) = 4261870085 / 1
LCM(65281,65285) = 4261870085

Least Common Multiple (LCM) of 65281 and 65285 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65281 and 65285. First we will calculate the prime factors of 65281 and 65285.

Prime Factorization of 65281

Prime Factorization of 65285

Now multiplying the highest exponent prime factors to calculate the LCM of 65281 and 65285.

LCM(65281,65285) = 97¹ × 673¹ × 5¹ × 11¹ × 1187¹
LCM(65281,65285) = 4261870085