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36 and 100, among others.
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To have an odd number of factors, one of them must be repeated, which means the number must be a perfect square.
In the prime factorisation of a perfect square in power format, every power of a prime is an even number.
To find the number of factors of a number, add one to the powers of all the primes in the number's prime factorisation and multiply them together.
Thus all numbers of the form p^8 or p²q² where p and q are different primes have 9 factors.
so 2^8 = 256, 3^8 = 6561, 5^8 = 390625, ... all have 9 factors, as do:
2²3² = 36, 2²5² = 100, 2²7² = 196, 3²5² = 225, 3²,7² = 441, ...
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The number four has three factors What is the next number with exactly three factors?
The number 9: factors are 9, 3, and 1.
What is the largest one digit number that has 3 factors?
The largest one digit number that has three factors is 9. Its factors are 1, 3, and 9.
How many factors does the number 9 have?
9 has three factors: 1, 3, and 9.
The number 9 has three different factors the number 10 has how many different factors?
Four
What odd number has 3 factors?
Well, honey, an odd number with only 3 factors is like finding a unicorn at the grocery store - rare but not impossible. The number you're looking for is 9. It's odd, and its factors are 1, 3, and 9. Voilà!
The number four has three factors What is the next number with exactly three factors?
The number 9: factors are 9, 3, and 1.
Is there a number with exactly 9 factors?
36 has 9 factors.
What number has three factors?
9 (factors are 1, 3, and 9)
What is the number of factors of 9?
It has three factors which are: 1, 3 and 9
How many factors in the number 9?
3 factors.
What is the largest one digit number that has 3 factors?
The largest one digit number that has three factors is 9. Its factors are 1, 3, and 9.
What number has the factors 2 7 9?
9
What are the factors for number 9?
1,3,9
Why does any number with a factor of 9 also have 3?
Because 3 is a factor of 9. Any number that has a composite number as a factor will also have that number's factors as factors.
When you divide a number exactly by another number the which number become factors of that number?
6 divides 54 exactly to yield 9. Then 6 and 9 are factors of 54.
How many factors does the number 9 have?
9 has three factors: 1, 3, and 9.
What are the number of factors of 9?
They are: 1, 3 and 9
