What is the Least Common Multiple of 67643 and 67663?

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 67643 and 67663 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67643 and 67663, than apply into the LCM equation.

GCF(67643,67663) = 1
LCM(67643,67663) = ( 67643 × 67663) / 1
LCM(67643,67663) = 4576928309 / 1
LCM(67643,67663) = 4576928309

Least Common Multiple (LCM) of 67643 and 67663 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67643 and 67663. First we will calculate the prime factors of 67643 and 67663.

Prime Factorization of 67643

Prime Factorization of 67663

Now multiplying the highest exponent prime factors to calculate the LCM of 67643 and 67663.

LCM(67643,67663) = 17¹ × 23¹ × 173¹ × 71¹ × 953¹
LCM(67643,67663) = 4576928309