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What is the Least Common Multiple of 42691 and 42706?

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 42691 and 42706 is 1823161846.

LCM(42691,42706) = 1823161846

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Least Common Multiple of 42691 and 42706 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42691 and 42706, than apply into the LCM equation.

GCF(42691,42706) = 1
LCM(42691,42706) = ( 42691 × 42706) / 1
LCM(42691,42706) = 1823161846 / 1
LCM(42691,42706) = 1823161846

Least Common Multiple (LCM) of 42691 and 42706 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42691 and 42706. First we will calculate the prime factors of 42691 and 42706.

Prime Factorization of 42691

Prime factors of 42691 are 11, 3881. Prime factorization of 42691 in exponential form is:

42691 = 111 × 38811

Prime Factorization of 42706

Prime factors of 42706 are 2, 131, 163. Prime factorization of 42706 in exponential form is:

42706 = 21 × 1311 × 1631

Now multiplying the highest exponent prime factors to calculate the LCM of 42691 and 42706.

LCM(42691,42706) = 111 × 38811 × 21 × 1311 × 1631
LCM(42691,42706) = 1823161846