What is the Least Common Multiple of 42401 and 42413?

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 42401 and 42413 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42401 and 42413, than apply into the LCM equation.

GCF(42401,42413) = 1
LCM(42401,42413) = ( 42401 × 42413) / 1
LCM(42401,42413) = 1798353613 / 1
LCM(42401,42413) = 1798353613

Least Common Multiple (LCM) of 42401 and 42413 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42401 and 42413. First we will calculate the prime factors of 42401 and 42413.

Prime Factorization of 42401

Prime Factorization of 42413

Now multiplying the highest exponent prime factors to calculate the LCM of 42401 and 42413.

LCM(42401,42413) = 109¹ × 389¹ × 7¹ × 73¹ × 83¹
LCM(42401,42413) = 1798353613