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What is the Least Common Multiple of 42031 and 42040?

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 (LCM) of 42031 and 42040 is 1766983240.

LCM(42031,42040) = 1766983240

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Least Common Multiple of 42031 and 42040 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42031 and 42040, than apply into the LCM equation.

GCF(42031,42040) = 1
LCM(42031,42040) = ( 42031 × 42040) / 1
LCM(42031,42040) = 1766983240 / 1
LCM(42031,42040) = 1766983240

Least Common Multiple (LCM) of 42031 and 42040 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42031 and 42040. First we will calculate the prime factors of 42031 and 42040.

Prime Factorization of 42031

Prime factors of 42031 are 11, 3821. Prime factorization of 42031 in exponential form is:

42031 = 111 × 38211

Prime Factorization of 42040

Prime factors of 42040 are 2, 5, 1051. Prime factorization of 42040 in exponential form is:

42040 = 23 × 51 × 10511

Now multiplying the highest exponent prime factors to calculate the LCM of 42031 and 42040.

LCM(42031,42040) = 111 × 38211 × 23 × 51 × 10511
LCM(42031,42040) = 1766983240