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What is the Least Common Multiple of 64771 and 64791?

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 64771 and 64791 is 4196577861.

LCM(64771,64791) = 4196577861

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Least Common Multiple of 64771 and 64791 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 64771 and 64791, than apply into the LCM equation.

GCF(64771,64791) = 1
LCM(64771,64791) = ( 64771 × 64791) / 1
LCM(64771,64791) = 4196577861 / 1
LCM(64771,64791) = 4196577861

Least Common Multiple (LCM) of 64771 and 64791 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 64771 and 64791. First we will calculate the prime factors of 64771 and 64791.

Prime Factorization of 64771

Prime factors of 64771 are 7, 19, 487. Prime factorization of 64771 in exponential form is:

64771 = 71 × 191 × 4871

Prime Factorization of 64791

Prime factors of 64791 are 3, 23, 313. Prime factorization of 64791 in exponential form is:

64791 = 32 × 231 × 3131

Now multiplying the highest exponent prime factors to calculate the LCM of 64771 and 64791.

LCM(64771,64791) = 71 × 191 × 4871 × 32 × 231 × 3131
LCM(64771,64791) = 4196577861