What is the Least Common Multiple of 8201 and 8221?

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 8201 and 8221 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8201 and 8221, than apply into the LCM equation.

GCF(8201,8221) = 1
LCM(8201,8221) = ( 8201 × 8221) / 1
LCM(8201,8221) = 67420421 / 1
LCM(8201,8221) = 67420421

Least Common Multiple (LCM) of 8201 and 8221 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8201 and 8221. First we will calculate the prime factors of 8201 and 8221.

Prime Factorization of 8201

Prime Factorization of 8221

Now multiplying the highest exponent prime factors to calculate the LCM of 8201 and 8221.

LCM(8201,8221) = 59¹ × 139¹ × 8221¹
LCM(8201,8221) = 67420421