What is the Least Common Multiple of 8161 and 8169?

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 8161 and 8169 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8161 and 8169, than apply into the LCM equation.

GCF(8161,8169) = 1
LCM(8161,8169) = ( 8161 × 8169) / 1
LCM(8161,8169) = 66667209 / 1
LCM(8161,8169) = 66667209

Least Common Multiple (LCM) of 8161 and 8169 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8161 and 8169. First we will calculate the prime factors of 8161 and 8169.

Prime Factorization of 8161

Prime Factorization of 8169

Now multiplying the highest exponent prime factors to calculate the LCM of 8161 and 8169.

LCM(8161,8169) = 8161¹ × 3¹ × 7¹ × 389¹
LCM(8161,8169) = 66667209