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What is the Least Common Multiple of 42757 and 42771?

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 42757 and 42771 is 1828759647.

LCM(42757,42771) = 1828759647

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Least Common Multiple of 42757 and 42771 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42757 and 42771, than apply into the LCM equation.

GCF(42757,42771) = 1
LCM(42757,42771) = ( 42757 × 42771) / 1
LCM(42757,42771) = 1828759647 / 1
LCM(42757,42771) = 1828759647

Least Common Multiple (LCM) of 42757 and 42771 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42757 and 42771. First we will calculate the prime factors of 42757 and 42771.

Prime Factorization of 42757

Prime factors of 42757 are 11, 13, 23. Prime factorization of 42757 in exponential form is:

42757 = 111 × 132 × 231

Prime Factorization of 42771

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

42771 = 31 × 531 × 2691

Now multiplying the highest exponent prime factors to calculate the LCM of 42757 and 42771.

LCM(42757,42771) = 111 × 132 × 231 × 31 × 531 × 2691
LCM(42757,42771) = 1828759647