What is the Least Common Multiple of 67543 and 67557?

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 67543 and 67557 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67543 and 67557, than apply into the LCM equation.

GCF(67543,67557) = 7
LCM(67543,67557) = ( 67543 × 67557) / 7
LCM(67543,67557) = 4563002451 / 7
LCM(67543,67557) = 651857493

Least Common Multiple (LCM) of 67543 and 67557 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67543 and 67557. First we will calculate the prime factors of 67543 and 67557.

Prime Factorization of 67543

Prime Factorization of 67557

Now multiplying the highest exponent prime factors to calculate the LCM of 67543 and 67557.

LCM(67543,67557) = 7¹ × 9649¹ × 3¹ × 3217¹
LCM(67543,67557) = 651857493