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If you multiply all the prime factors you've found together and the result is the number, you have found all of them.

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Q: How do you know when you've found all the factors of a number?
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How do you know when you found the longest possible string of factors for a number?

When each one of them is a prime.


What is the n in x incicating the number of factors of x?

not able to know what you mean?


How do you know when you have found all the factors of a number?

Write the number in terms of its prime factors. So suppose is is:Z = ap*bq*cr ...where a, b, c are prime factors and p, q, r are indices.Then the total number of factors of Z is (p+1)*(q+1)*(r+1) ...If you have fewer, you have missed some out.Alternatively,Test Z for divisibility by each integer, from 1 upwards to sqrt(Z). At each stage, make a note of any factor found as well as the quotient when it divides Z.If you are thorough, you will find all the factors. This method may be simpler but relies absolutely on systematically going through many integers as potential divisors.


The number you multiply in a multiplication question is called?

The numbers in a mulitplication question are called factors. The answer is a product. So, say if the question was 5x5. We all know it is 25. 5 and 5 are your factors, and 25 is your product.


What are the factors and prime factors of 185?

The factors are 1, 5, 37, and 185. Factoring 185: 185 is actually an easy number to factor (or break down) into primes.1. This is done using division. The first step is to divide 185 by some small number that you know is prime. Clearly, 185 is divisible by 5. Do that division.2. Because 185 is evenly divisible by 5, and 5 is a prime number, then 5 is a prime factor of 185. If there's anything that you take away from this answer here, this is the most important thing. It's the definition of prime factors.3. After the division by 5, you have an answer left over, the quotient. Now you need to factor that quotient, if it is not already prime, by going to back to step one and using a trial division.4. Repeat 1-3 until you cant divide the answers further, and all you have left are prime numbers. When you multiply these numbers together, you will get 185 if you did everything correctly.HINT: 185 has only 2 prime factors, 5 and 37Prime factors of 185 are 5 and 37

Related questions

How do you know you found all factors to a number?

How to know that you found all the factors for example my teacher taught me that when u reach a double diget number that is all the factors. ( 6x6)-~ double diget number


How do you know when you have found the longest string of factors for a number?

When all the factors are prime.


How do you know when you have found the longest possible sting factors of a number?

All of the factors are prime.


How do you know when you have found the longest factor string for a number?

All of the factors are prime.


How do you know when you found the longest possible string of factors for a number?

When each one of them is a prime.


How do you know if a number is abundant or deficiant?

First to be able to find an abundant number you have find all the factors of any number. Then add them all up. If the total is bigger than the number you found out the factors of then it is an abundant number and if the total is less than the number you found out the factors for it is a deficiant number and finally if the total is the same number as the one you found out the factors for it is called a perfect number. Thanks for learning from me. I hope you have understood what i have typed. Bye!


When looking for a factors of a composite number how do you know you have found the right answer?

List them all, and multiply to see if you get the original number.


Where can you get the red jacket Bart has in hollyoaks?

i also really want to know the jacket if youve found it please could you tell me where to purchase it, if youve got skype my name is david.rothwell37 or please somehow inbox me or something on answers.com thanks :)


Do you need to know all of the factors of a number to know it is prime or composite?

To know that a number is prime you need to know that it has no factors other than 1 and the number itself.To know that a number is composite you only need to know one factor other than the number itself or 1.


Why do you need to know all of the factors to a number to know if it is a prime or composite number?

You don't.If you know just one factor, other than 1 and the number itself, you will know that the number is composite.A prime has only two factors: 1 and itself. So all the factors is no big deal.


How do you track a disease?

you'll know once youve got a cold or the sniffles


Do numbers always have more than two factors?

No, an odd number can have any number of factors. There is no limit but you do know that the number 2 is not one of those factors.