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Number Factors
9 - 1, 3, 9
4 - 1, 2, 4
25 - 1, 5, 25
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∙ 12y ago
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What numbers have exactly 3 factors?
All numbers that are the square of primes have exactly 3 factors.
What are numbers with only 3 factors called?
they are called numbers with 3 factors
What numbers only have more then 3 factors?
The answer depends on what the numbers have more of when 3 factors!
What do 4 9 25 and 49 have in common?
Each of their square roots are prime numbers and each have only 3 factors
A number that has exactly 3 factors?
The way to be sure you have one of these is to take any three distinct prime numbers and multiply them. Those three prime numbers are then the only factors the product can have. An example is the number 30, which has factors of 2, 3 and 5.
What are the square numbers that are factors of 18?
The factors of 18 are 1, 2, 3, 6, 9, and 18. The only square number of those numbers is 9.
What numbers with exactly 3 factors are?
A number has exactly three factors if and only if it is the square of a prime number.
What are numbers with 3 or 5 factors called?
Numbers with 3 or 5 factors are called square numbers.
What numbers have exactly 3 factors?
All numbers that are the square of primes have exactly 3 factors.
Do all square numbers have exactly 3 factors?
No. 81=9*9=3*27=1*81 81 has 5 factors and is a square number. 36=6*6=3*12=1*36=2*18=4*9 36 has 9 factors and is a square number. This doesn't mean that no square numbers have exactly 3 factors though, because: 9=3*3=1*9 9 has 3 factors and is a square number. 4=2*2=1*4 4 has 3 factors and is a square number. All square numbers have an odd number of factors though (because they have a whole number which multiplies by itself to get the number). Factors are whole numbers only, and not decimals. Hope this helps :)
What are numbers with only 3 factors called?
they are called numbers with 3 factors
What numbers only have more then 3 factors?
The answer depends on what the numbers have more of when 3 factors!
How many numbers have only 3 factors?
Okay, whoever said that a number can only have an even number of factors IS Wrong Take a prime number and square it. If you square a prime number, the number you get will only have 3 factors. For example, if I squared the number 3, I would get 9. 9 only has three factors: 9, 3, 1 Any prime number squared has Three factors.
What types of numbers has an odd number of factors give examples?
Square numbers have odd numbers of factors.
Which of the first ten perfect square numbers has only 3 factors?
Those would be the squares of prime numbers: 22, 32, 52, etc.
What do 4 9 25 and 49 have in common?
Each of their square roots are prime numbers and each have only 3 factors
Why are there no square prime numbers?
By definition, a prime number only has two factors - 1 and itself. For example, 13 only has 2 factors - 1 and 13. A square number (x2) has the factor x. For example, 9 has the factors 1, 9, and 3. The only way that a square number could possibly be prime is if x=1.
