What is the Least Common Multiple of 42997 and 43013?

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 42997 and 43013 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42997 and 43013, than apply into the LCM equation.

GCF(42997,43013) = 1
LCM(42997,43013) = ( 42997 × 43013) / 1
LCM(42997,43013) = 1849429961 / 1
LCM(42997,43013) = 1849429961

Least Common Multiple (LCM) of 42997 and 43013 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42997 and 43013. First we will calculate the prime factors of 42997 and 43013.

Prime Factorization of 42997

Prime Factorization of 43013

Now multiplying the highest exponent prime factors to calculate the LCM of 42997 and 43013.

LCM(42997,43013) = 19¹ × 31¹ × 73¹ × 43013¹
LCM(42997,43013) = 1849429961