What is the Least Common Multiple of 68003 and 68021?

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 68003 and 68021 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68003 and 68021, than apply into the LCM equation.

GCF(68003,68021) = 1
LCM(68003,68021) = ( 68003 × 68021) / 1
LCM(68003,68021) = 4625632063 / 1
LCM(68003,68021) = 4625632063

Least Common Multiple (LCM) of 68003 and 68021 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68003 and 68021. First we will calculate the prime factors of 68003 and 68021.

Prime Factorization of 68003

Prime Factorization of 68021

Now multiplying the highest exponent prime factors to calculate the LCM of 68003 and 68021.

LCM(68003,68021) = 13¹ × 5231¹ × 251¹ × 271¹
LCM(68003,68021) = 4625632063