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9, 25, 49 and so on. Prime squares have three factors and other than 4, they are all odd numbers.
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Which number from ten to twenty has an odd number of factors?
Only perfect squares can have an odd number of factors. The answer is 16. It has five factors: 1,2,4,8,16.
Which numbers between 50 and 60 have an odd number of factors?
No numbers in that range have an odd number of factors.
Is the product of an odd number of factors always a negative number?
Only if an odd number of the factors are negative numbers.
What type of number has odd numbers as factors?
Both odd and even numbers may have odd numbers as factors.
What whole number less than 150 has odd number of factors?
There are 12 numbers less than 150 which have an odd number of factors: 1,4,9,16,25,36,49,64,81,100,121,144.
Do odd numbers have a odd or even number of factors?
The number of factors can be either even or odd.
Why do the following numbers have an odd number of factors 1610025?
1610025 = 3*5*5*21467 has 12 factors and 12 is NOT an odd number.
How do you find an odd factor of a number?
All nonzero numbers have factors. Some factors are odd numbers. 3 is an odd factor of 12.
What odd number has the most factors?
That's just as meaningless a question as asking "what is the biggest number?" Just as there is no biggest number (you can always get bigger numbers by adding 1), there is no odd number with the most factors. You could multiply any odd number by 3, and get an odd number with another factor of 3.
Does 57 have a odd number of factors?
No. The number 57 has an even number of factors. They are: 1, 3, 19, 57.
Odd number of factors?
Square numbers have an odd number of factors.
What kind of factors have an odd number of factors?
Square numbers have an odd number of factors.
Can an odd number have odd numbers of factors?
Yes. Square numbers have an odd number of factors. 49 has three factors.
Can a number have an odd number of factors?
Yes, quare numbers have an odd number of factors.
What is a number that has an odd number of factors?
if a number has an odd number of factors it would be a perfect square
What is a number that has odd number of factors?
if a number has an odd number of factors it would be a perfect square
Numbers that have an odd number of factors are?
Perfect squares ( also called square numbers) have an odd number of factors and primes squared have 3 factors. Brief Explanation: If you start with a prime number, it has 2 factors by definition. Square that number and you have 3 factors, which is an odd number. So primes squared always have an odd number of factors. For example, 5 has 1 and 5 as factors, 25 has 1,5, and 25. What about an odd number such as 21 which is not the square of a prime. It has factors 1, 21, 3 and 7 so an even number of factors. How about 27, 1,27, 3, 9 once again even. What I was trying to show is that factors of numbers come in pairs and so only certain numbers will have an odd number of factors. Let's look at one more perfect square that is not a prime squared. How about 16 which is 4 squared. The factors are 1,2,4,8,and 16 which is an odd number of factors. Looking at these as pairs we see the factor pairs of 16 are 1 x 16, 2 x 8, and 4 x 4, giving us the factors of 1, 2, 4, 8, and 16 - an odd number of factors. So we conclude that perfect squares have an odd number of factors and primes squared have 3 factors.
