What is the Least Common Multiple of 67639 and 67643?

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 67639 and 67643 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67639 and 67643, than apply into the LCM equation.

GCF(67639,67643) = 1
LCM(67639,67643) = ( 67639 × 67643) / 1
LCM(67639,67643) = 4575304877 / 1
LCM(67639,67643) = 4575304877

Least Common Multiple (LCM) of 67639 and 67643 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67639 and 67643. First we will calculate the prime factors of 67639 and 67643.

Prime Factorization of 67639

Prime Factorization of 67643

Now multiplying the highest exponent prime factors to calculate the LCM of 67639 and 67643.

LCM(67639,67643) = 11² × 13¹ × 43¹ × 17¹ × 23¹ × 173¹
LCM(67639,67643) = 4575304877