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What is the Least Common Multiple of 47957 and 47971?

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 47957 and 47971 is 328649321.

LCM(47957,47971) = 328649321

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Least Common Multiple of 47957 and 47971 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 47957 and 47971, than apply into the LCM equation.

GCF(47957,47971) = 7
LCM(47957,47971) = ( 47957 × 47971) / 7
LCM(47957,47971) = 2300545247 / 7
LCM(47957,47971) = 328649321

Least Common Multiple (LCM) of 47957 and 47971 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 47957 and 47971. First we will calculate the prime factors of 47957 and 47971.

Prime Factorization of 47957

Prime factors of 47957 are 7, 13, 17, 31. Prime factorization of 47957 in exponential form is:

47957 = 71 × 131 × 171 × 311

Prime Factorization of 47971

Prime factors of 47971 are 7, 11, 89. Prime factorization of 47971 in exponential form is:

47971 = 72 × 111 × 891

Now multiplying the highest exponent prime factors to calculate the LCM of 47957 and 47971.

LCM(47957,47971) = 72 × 131 × 171 × 311 × 111 × 891
LCM(47957,47971) = 328649321