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What is the Least Common Multiple of 28655 and 28663?

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 28655 and 28663 is 821338265.

LCM(28655,28663) = 821338265

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Least Common Multiple of 28655 and 28663 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 28655 and 28663, than apply into the LCM equation.

GCF(28655,28663) = 1
LCM(28655,28663) = ( 28655 × 28663) / 1
LCM(28655,28663) = 821338265 / 1
LCM(28655,28663) = 821338265

Least Common Multiple (LCM) of 28655 and 28663 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 28655 and 28663. First we will calculate the prime factors of 28655 and 28663.

Prime Factorization of 28655

Prime factors of 28655 are 5, 11, 521. Prime factorization of 28655 in exponential form is:

28655 = 51 × 111 × 5211

Prime Factorization of 28663

Prime factors of 28663 are 28663. Prime factorization of 28663 in exponential form is:

28663 = 286631

Now multiplying the highest exponent prime factors to calculate the LCM of 28655 and 28663.

LCM(28655,28663) = 51 × 111 × 5211 × 286631
LCM(28655,28663) = 821338265