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What is the Least Common Multiple of 42706 and 42715?

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 42706 and 42715 is 1824186790.

LCM(42706,42715) = 1824186790

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Least Common Multiple of 42706 and 42715 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42706 and 42715, than apply into the LCM equation.

GCF(42706,42715) = 1
LCM(42706,42715) = ( 42706 × 42715) / 1
LCM(42706,42715) = 1824186790 / 1
LCM(42706,42715) = 1824186790

Least Common Multiple (LCM) of 42706 and 42715 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42706 and 42715. First we will calculate the prime factors of 42706 and 42715.

Prime Factorization of 42706

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

42706 = 21 × 1311 × 1631

Prime Factorization of 42715

Prime factors of 42715 are 5, 8543. Prime factorization of 42715 in exponential form is:

42715 = 51 × 85431

Now multiplying the highest exponent prime factors to calculate the LCM of 42706 and 42715.

LCM(42706,42715) = 21 × 1311 × 1631 × 51 × 85431
LCM(42706,42715) = 1824186790