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What is the Least Common Multiple of 8656 and 8660?

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 8656 and 8660 is 18740240.

LCM(8656,8660) = 18740240

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Least Common Multiple of 8656 and 8660 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8656 and 8660, than apply into the LCM equation.

GCF(8656,8660) = 4
LCM(8656,8660) = ( 8656 × 8660) / 4
LCM(8656,8660) = 74960960 / 4
LCM(8656,8660) = 18740240

Least Common Multiple (LCM) of 8656 and 8660 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8656 and 8660. First we will calculate the prime factors of 8656 and 8660.

Prime Factorization of 8656

Prime factors of 8656 are 2, 541. Prime factorization of 8656 in exponential form is:

8656 = 24 × 5411

Prime Factorization of 8660

Prime factors of 8660 are 2, 5, 433. Prime factorization of 8660 in exponential form is:

8660 = 22 × 51 × 4331

Now multiplying the highest exponent prime factors to calculate the LCM of 8656 and 8660.

LCM(8656,8660) = 24 × 5411 × 51 × 4331
LCM(8656,8660) = 18740240