What is the Least Common Multiple of 42520 and 42531?

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 42520 and 42531 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42520 and 42531, than apply into the LCM equation.

GCF(42520,42531) = 1
LCM(42520,42531) = ( 42520 × 42531) / 1
LCM(42520,42531) = 1808418120 / 1
LCM(42520,42531) = 1808418120

Least Common Multiple (LCM) of 42520 and 42531 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42520 and 42531. First we will calculate the prime factors of 42520 and 42531.

Prime Factorization of 42520

Prime Factorization of 42531

Now multiplying the highest exponent prime factors to calculate the LCM of 42520 and 42531.

LCM(42520,42531) = 2³ × 5¹ × 1063¹ × 3¹ × 14177¹
LCM(42520,42531) = 1808418120