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What is the Least Common Multiple of 42771 and 42791?

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 42771 and 42791 is 1830213861.

LCM(42771,42791) = 1830213861

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Least Common Multiple of 42771 and 42791 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42771 and 42791, than apply into the LCM equation.

GCF(42771,42791) = 1
LCM(42771,42791) = ( 42771 × 42791) / 1
LCM(42771,42791) = 1830213861 / 1
LCM(42771,42791) = 1830213861

Least Common Multiple (LCM) of 42771 and 42791 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42771 and 42791. First we will calculate the prime factors of 42771 and 42791.

Prime Factorization of 42771

Prime factors of 42771 are 3, 53, 269. Prime factorization of 42771 in exponential form is:

42771 = 31 × 531 × 2691

Prime Factorization of 42791

Prime factors of 42791 are 7, 6113. Prime factorization of 42791 in exponential form is:

42791 = 71 × 61131

Now multiplying the highest exponent prime factors to calculate the LCM of 42771 and 42791.

LCM(42771,42791) = 31 × 531 × 2691 × 71 × 61131
LCM(42771,42791) = 1830213861