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What is the Least Common Multiple of 67647 and 67659?

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 67647 and 67659 is 1525642791.

LCM(67647,67659) = 1525642791

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Least Common Multiple of 67647 and 67659 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67647 and 67659, than apply into the LCM equation.

GCF(67647,67659) = 3
LCM(67647,67659) = ( 67647 × 67659) / 3
LCM(67647,67659) = 4576928373 / 3
LCM(67647,67659) = 1525642791

Least Common Multiple (LCM) of 67647 and 67659 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67647 and 67659. First we will calculate the prime factors of 67647 and 67659.

Prime Factorization of 67647

Prime factors of 67647 are 3, 22549. Prime factorization of 67647 in exponential form is:

67647 = 31 × 225491

Prime Factorization of 67659

Prime factors of 67659 are 3, 19, 1187. Prime factorization of 67659 in exponential form is:

67659 = 31 × 191 × 11871

Now multiplying the highest exponent prime factors to calculate the LCM of 67647 and 67659.

LCM(67647,67659) = 31 × 225491 × 191 × 11871
LCM(67647,67659) = 1525642791