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What is the Least Common Multiple of 42685 and 42702?

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 42685 and 42702 is 1822734870.

LCM(42685,42702) = 1822734870

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Least Common Multiple of 42685 and 42702 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42685 and 42702, than apply into the LCM equation.

GCF(42685,42702) = 1
LCM(42685,42702) = ( 42685 × 42702) / 1
LCM(42685,42702) = 1822734870 / 1
LCM(42685,42702) = 1822734870

Least Common Multiple (LCM) of 42685 and 42702 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42685 and 42702. First we will calculate the prime factors of 42685 and 42702.

Prime Factorization of 42685

Prime factors of 42685 are 5, 8537. Prime factorization of 42685 in exponential form is:

42685 = 51 × 85371

Prime Factorization of 42702

Prime factors of 42702 are 2, 3, 11, 647. Prime factorization of 42702 in exponential form is:

42702 = 21 × 31 × 111 × 6471

Now multiplying the highest exponent prime factors to calculate the LCM of 42685 and 42702.

LCM(42685,42702) = 51 × 85371 × 21 × 31 × 111 × 6471
LCM(42685,42702) = 1822734870