What is the Least Common Multiple of 42842 and 42847?

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 42842 and 42847 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42842 and 42847, than apply into the LCM equation.

GCF(42842,42847) = 1
LCM(42842,42847) = ( 42842 × 42847) / 1
LCM(42842,42847) = 1835651174 / 1
LCM(42842,42847) = 1835651174

Least Common Multiple (LCM) of 42842 and 42847 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42842 and 42847. First we will calculate the prime factors of 42842 and 42847.

Prime Factorization of 42842

Prime Factorization of 42847

Now multiplying the highest exponent prime factors to calculate the LCM of 42842 and 42847.

LCM(42842,42847) = 2¹ × 31¹ × 691¹ × 7¹ × 6121¹
LCM(42842,42847) = 1835651174