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Q: What are the next numbers after 1 4 9 and 16 which have odd factors?

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Square numbers like 4, 9 and 16 have odd numbers of factors.

Square numbers have odd numbers of factors. Examples: 4, 9, 16

16 has an odd number of factors; its factors are 1, 2, 4, 8, and 16

These numbers between 1 and 40 have an odd number of factors: 4, 9, 16, 25, 36.

Square numbers have an odd number of factors. 1, 4, 9, 16...

Square numbers, like 16, 49, 121, 169 and 225 have an odd number of factors.

4, 9, 16 and 25 are square numbers.

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.

Squares of even numbers like 4 and 16.

The squares: 1, 4, 9, 16, 25

18, 22, 26 and 30 have two of the same factors as 16.

How many odd numbers are there from 16 to 30? Seven {7} odd numbers

No. The factors of 16 are 1, 2, 4, 8, 16. 1 is an odd number. 2, 4, 8, 16 are even numbers.

There are five square numbers in that range: 1, 4, 9, 16 and 25

Square numbers: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100

1, 4 and 16 are square numbers that are factors of 32. Of these, 4 and 16 have two as their only prime factor and 1 is odd.

16 is an even number. Even numbers are divisible by 2, and 16 / 2 = 8.

It's a square number. Square numbers have a factor pair that is the same number twice. When listed, that number occurs once.

Factors are numbers you can multiply together to get another number. 16: 1, 2, 4, 8, 16 16 has 5 factors.

If this question means "in the interval 0 to 16 inclusive, is the sum of the odd numbers the same as the sum of the even numbers ?" then the answer is no. The sum of the even numbers is eight more than the sum of the odd ones.

All numbers have factors. Some numbers have some of the same factors as other numbers. Multiples of numbers have all of the factors of numbers that are factors of them, plus some of their own. 32 is a multiple of 16 and will have all of its factors. 64 is a multiple of both 32 and 16 and will have all of their factors.

Square numbers 1, 4, 9, 16, 25, 36, 49, 64, 81, 100

4, 9, 25, 49; 16, 81; 64 and 36.

Adding three odd numbers will never equal an even number.

Square numbers like 1, 4, 9, 16, 25, 36, 49, 64, 81, 100