What is the Least Common Multiple of 71830 and 71842?

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 71830 and 71842 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 71830 and 71842, than apply into the LCM equation.

GCF(71830,71842) = 2
LCM(71830,71842) = ( 71830 × 71842) / 2
LCM(71830,71842) = 5160410860 / 2
LCM(71830,71842) = 2580205430

Least Common Multiple (LCM) of 71830 and 71842 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 71830 and 71842. First we will calculate the prime factors of 71830 and 71842.

Prime Factorization of 71830

Prime Factorization of 71842

Now multiplying the highest exponent prime factors to calculate the LCM of 71830 and 71842.

LCM(71830,71842) = 2¹ × 5¹ × 11¹ × 653¹ × 17¹ × 2113¹
LCM(71830,71842) = 2580205430