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What is the Least Common Multiple of 51987 and 51997?

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 51987 and 51997 is 2703168039.

LCM(51987,51997) = 2703168039

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Least Common Multiple of 51987 and 51997 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51987 and 51997, than apply into the LCM equation.

GCF(51987,51997) = 1
LCM(51987,51997) = ( 51987 × 51997) / 1
LCM(51987,51997) = 2703168039 / 1
LCM(51987,51997) = 2703168039

Least Common Multiple (LCM) of 51987 and 51997 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51987 and 51997. First we will calculate the prime factors of 51987 and 51997.

Prime Factorization of 51987

Prime factors of 51987 are 3, 13, 31, 43. Prime factorization of 51987 in exponential form is:

51987 = 31 × 131 × 311 × 431

Prime Factorization of 51997

Prime factors of 51997 are 11, 29, 163. Prime factorization of 51997 in exponential form is:

51997 = 111 × 291 × 1631

Now multiplying the highest exponent prime factors to calculate the LCM of 51987 and 51997.

LCM(51987,51997) = 31 × 131 × 311 × 431 × 111 × 291 × 1631
LCM(51987,51997) = 2703168039