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What is the Least Common Multiple of 42746 and 42756?

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 42746 and 42756 is 913823988.

LCM(42746,42756) = 913823988

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Least Common Multiple of 42746 and 42756 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42746 and 42756, than apply into the LCM equation.

GCF(42746,42756) = 2
LCM(42746,42756) = ( 42746 × 42756) / 2
LCM(42746,42756) = 1827647976 / 2
LCM(42746,42756) = 913823988

Least Common Multiple (LCM) of 42746 and 42756 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42746 and 42756. First we will calculate the prime factors of 42746 and 42756.

Prime Factorization of 42746

Prime factors of 42746 are 2, 11, 29, 67. Prime factorization of 42746 in exponential form is:

42746 = 21 × 111 × 291 × 671

Prime Factorization of 42756

Prime factors of 42756 are 2, 3, 7, 509. Prime factorization of 42756 in exponential form is:

42756 = 22 × 31 × 71 × 5091

Now multiplying the highest exponent prime factors to calculate the LCM of 42746 and 42756.

LCM(42746,42756) = 22 × 111 × 291 × 671 × 31 × 71 × 5091
LCM(42746,42756) = 913823988