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What is the Least Common Multiple of 28906 and 28914?

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 28906 and 28914 is 417894042.

LCM(28906,28914) = 417894042

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Least Common Multiple of 28906 and 28914 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28906 and 28914, than apply into the LCM equation.

GCF(28906,28914) = 2
LCM(28906,28914) = ( 28906 × 28914) / 2
LCM(28906,28914) = 835788084 / 2
LCM(28906,28914) = 417894042

Least Common Multiple (LCM) of 28906 and 28914 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28906 and 28914. First we will calculate the prime factors of 28906 and 28914.

Prime Factorization of 28906

Prime factors of 28906 are 2, 97, 149. Prime factorization of 28906 in exponential form is:

28906 = 21 × 971 × 1491

Prime Factorization of 28914

Prime factors of 28914 are 2, 3, 61, 79. Prime factorization of 28914 in exponential form is:

28914 = 21 × 31 × 611 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 28906 and 28914.

LCM(28906,28914) = 21 × 971 × 1491 × 31 × 611 × 791
LCM(28906,28914) = 417894042