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What is the Least Common Multiple of 42535 and 42551?

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 42535 and 42551 is 1809906785.

LCM(42535,42551) = 1809906785

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Least Common Multiple of 42535 and 42551 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42535 and 42551, than apply into the LCM equation.

GCF(42535,42551) = 1
LCM(42535,42551) = ( 42535 × 42551) / 1
LCM(42535,42551) = 1809906785 / 1
LCM(42535,42551) = 1809906785

Least Common Multiple (LCM) of 42535 and 42551 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42535 and 42551. First we will calculate the prime factors of 42535 and 42551.

Prime Factorization of 42535

Prime factors of 42535 are 5, 47, 181. Prime factorization of 42535 in exponential form is:

42535 = 51 × 471 × 1811

Prime Factorization of 42551

Prime factors of 42551 are 17, 2503. Prime factorization of 42551 in exponential form is:

42551 = 171 × 25031

Now multiplying the highest exponent prime factors to calculate the LCM of 42535 and 42551.

LCM(42535,42551) = 51 × 471 × 1811 × 171 × 25031
LCM(42535,42551) = 1809906785