What is the Least Common Multiple of 65638 and 65642?

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 65638 and 65642 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65638 and 65642, than apply into the LCM equation.

GCF(65638,65642) = 2
LCM(65638,65642) = ( 65638 × 65642) / 2
LCM(65638,65642) = 4308609596 / 2
LCM(65638,65642) = 2154304798

Least Common Multiple (LCM) of 65638 and 65642 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65638 and 65642. First we will calculate the prime factors of 65638 and 65642.

Prime Factorization of 65638

Prime Factorization of 65642

Now multiplying the highest exponent prime factors to calculate the LCM of 65638 and 65642.

LCM(65638,65642) = 2¹ × 37¹ × 887¹ × 23¹ × 1427¹
LCM(65638,65642) = 2154304798