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What is the Least Common Multiple of 74945 and 74957?

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 74945 and 74957 is 5617652365.

LCM(74945,74957) = 5617652365

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Least Common Multiple of 74945 and 74957 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74945 and 74957, than apply into the LCM equation.

GCF(74945,74957) = 1
LCM(74945,74957) = ( 74945 × 74957) / 1
LCM(74945,74957) = 5617652365 / 1
LCM(74945,74957) = 5617652365

Least Common Multiple (LCM) of 74945 and 74957 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74945 and 74957. First we will calculate the prime factors of 74945 and 74957.

Prime Factorization of 74945

Prime factors of 74945 are 5, 13, 1153. Prime factorization of 74945 in exponential form is:

74945 = 51 × 131 × 11531

Prime Factorization of 74957

Prime factors of 74957 are 23, 3259. Prime factorization of 74957 in exponential form is:

74957 = 231 × 32591

Now multiplying the highest exponent prime factors to calculate the LCM of 74945 and 74957.

LCM(74945,74957) = 51 × 131 × 11531 × 231 × 32591
LCM(74945,74957) = 5617652365