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What is the Least Common Multiple of 42706 and 42724?

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 42724 is 912285572.

LCM(42706,42724) = 912285572

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Least Common Multiple of 42706 and 42724 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 42724, than apply into the LCM equation.

GCF(42706,42724) = 2
LCM(42706,42724) = ( 42706 × 42724) / 2
LCM(42706,42724) = 1824571144 / 2
LCM(42706,42724) = 912285572

Least Common Multiple (LCM) of 42706 and 42724 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42706 and 42724. First we will calculate the prime factors of 42706 and 42724.

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 42724

Prime factors of 42724 are 2, 11, 971. Prime factorization of 42724 in exponential form is:

42724 = 22 × 111 × 9711

Now multiplying the highest exponent prime factors to calculate the LCM of 42706 and 42724.

LCM(42706,42724) = 22 × 1311 × 1631 × 111 × 9711
LCM(42706,42724) = 912285572