What is the Least Common Multiple of 42958 and 42972?

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 42958 and 42972 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42958 and 42972, than apply into the LCM equation.

GCF(42958,42972) = 2
LCM(42958,42972) = ( 42958 × 42972) / 2
LCM(42958,42972) = 1845991176 / 2
LCM(42958,42972) = 922995588

Least Common Multiple (LCM) of 42958 and 42972 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42958 and 42972. First we will calculate the prime factors of 42958 and 42972.

Prime Factorization of 42958

Prime Factorization of 42972

Now multiplying the highest exponent prime factors to calculate the LCM of 42958 and 42972.

LCM(42958,42972) = 2² × 47¹ × 457¹ × 3¹ × 3581¹
LCM(42958,42972) = 922995588