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What is the Least Common Multiple of 67791 and 67809?

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 67791 and 67809 is 1532279973.

LCM(67791,67809) = 1532279973

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Least Common Multiple of 67791 and 67809 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67791 and 67809, than apply into the LCM equation.

GCF(67791,67809) = 3
LCM(67791,67809) = ( 67791 × 67809) / 3
LCM(67791,67809) = 4596839919 / 3
LCM(67791,67809) = 1532279973

Least Common Multiple (LCM) of 67791 and 67809 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67791 and 67809. First we will calculate the prime factors of 67791 and 67809.

Prime Factorization of 67791

Prime factors of 67791 are 3, 59, 383. Prime factorization of 67791 in exponential form is:

67791 = 31 × 591 × 3831

Prime Factorization of 67809

Prime factors of 67809 are 3, 7, 3229. Prime factorization of 67809 in exponential form is:

67809 = 31 × 71 × 32291

Now multiplying the highest exponent prime factors to calculate the LCM of 67791 and 67809.

LCM(67791,67809) = 31 × 591 × 3831 × 71 × 32291
LCM(67791,67809) = 1532279973