0
How do you know when you've found all the factors of a number 30?
Wiki User
∙ 6y ago
You can tell how many factors a number has from the prime factorization by adding one to the exponents and multiplying them. The prime factorization of 30 is 2 x 3 x 5 which is actually 2^1 x 3^1 x 5^1. Adding one to the exponents gives you 2 x 2 x 2. 30 has eight factors.
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
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.
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.
What do we know about a number that has an odd number of distinct factors?
It's a perfect square.
How divisibility rules can help you find common factors?
Divisibility rules help you find the factors of a number. Once you've found the factors for two or more numbers, you can find what they have in common. Take 231 and 321. If you know the divisibility rules, you know that they are both divisible by 3, so 3 is a common factor.
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've found all the factors of a number?
If you multiply all the prime factors you've found together and the result is the number, you have found all of them.
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.
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.
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!
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.
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.
