What is the Least Common Multiple of 42830 and 42842?

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 42830 and 42842 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42830 and 42842, than apply into the LCM equation.

GCF(42830,42842) = 2
LCM(42830,42842) = ( 42830 × 42842) / 2
LCM(42830,42842) = 1834922860 / 2
LCM(42830,42842) = 917461430

Least Common Multiple (LCM) of 42830 and 42842 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42830 and 42842. First we will calculate the prime factors of 42830 and 42842.

Prime Factorization of 42830

Prime Factorization of 42842

Now multiplying the highest exponent prime factors to calculate the LCM of 42830 and 42842.

LCM(42830,42842) = 2¹ × 5¹ × 4283¹ × 31¹ × 691¹
LCM(42830,42842) = 917461430