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What is the Least Common Multiple of 42854 and 42862?

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 42854 and 42862 is 918404074.

LCM(42854,42862) = 918404074

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Least Common Multiple of 42854 and 42862 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 42854 and 42862, than apply into the LCM equation.

GCF(42854,42862) = 2
LCM(42854,42862) = ( 42854 × 42862) / 2
LCM(42854,42862) = 1836808148 / 2
LCM(42854,42862) = 918404074

Least Common Multiple (LCM) of 42854 and 42862 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 42854 and 42862. First we will calculate the prime factors of 42854 and 42862.

Prime Factorization of 42854

Prime factors of 42854 are 2, 7, 3061. Prime factorization of 42854 in exponential form is:

42854 = 21 × 71 × 30611

Prime Factorization of 42862

Prime factors of 42862 are 2, 29, 739. Prime factorization of 42862 in exponential form is:

42862 = 21 × 291 × 7391

Now multiplying the highest exponent prime factors to calculate the LCM of 42854 and 42862.

LCM(42854,42862) = 21 × 71 × 30611 × 291 × 7391
LCM(42854,42862) = 918404074