What is the Least Common Multiple of 66281 and 66289?

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 66281 and 66289 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66281 and 66289, than apply into the LCM equation.

GCF(66281,66289) = 1
LCM(66281,66289) = ( 66281 × 66289) / 1
LCM(66281,66289) = 4393701209 / 1
LCM(66281,66289) = 4393701209

Least Common Multiple (LCM) of 66281 and 66289 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 66281 and 66289. First we will calculate the prime factors of 66281 and 66289.

Prime Factorization of 66281

Prime Factorization of 66289

Now multiplying the highest exponent prime factors to calculate the LCM of 66281 and 66289.

LCM(66281,66289) = 79¹ × 839¹ × 151¹ × 439¹
LCM(66281,66289) = 4393701209