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What is the Least Common Multiple of 28957 and 28965?

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 28957 and 28965 is 838739505.

LCM(28957,28965) = 838739505

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Least Common Multiple of 28957 and 28965 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28957 and 28965, than apply into the LCM equation.

GCF(28957,28965) = 1
LCM(28957,28965) = ( 28957 × 28965) / 1
LCM(28957,28965) = 838739505 / 1
LCM(28957,28965) = 838739505

Least Common Multiple (LCM) of 28957 and 28965 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28957 and 28965. First we will calculate the prime factors of 28957 and 28965.

Prime Factorization of 28957

Prime factors of 28957 are 23, 1259. Prime factorization of 28957 in exponential form is:

28957 = 231 × 12591

Prime Factorization of 28965

Prime factors of 28965 are 3, 5, 1931. Prime factorization of 28965 in exponential form is:

28965 = 31 × 51 × 19311

Now multiplying the highest exponent prime factors to calculate the LCM of 28957 and 28965.

LCM(28957,28965) = 231 × 12591 × 31 × 51 × 19311
LCM(28957,28965) = 838739505