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No. From Wikipedia: "The first few deficient numbers are: 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 22, 23, 25, 26, 27, ..." As you can see, the list includes both even and odd numbers. For example, all powers of two are deficient.
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Do all odd numbers have other odd numbers as their factors?
Yes, the factors of all odd numbers are odd numbers.
Are prime numbers are odd numbers?
With exception of the number 2, all prime numbers are odd. However, not all odd numbers are prime.
Are all prime numbers odd numbers?
All prime numbers are odd with the only exception of the prime number 2. However, not all odd numbers are prime.
Which number when multiplied by any odd number always results in an odd number?
All of the odd numbers.
Are odd numbers in square numbers?
Half of all square numbers are odd. They are the ones which are the square of an odd number.
Are all odd numbers composite?
With the exception of 2, all primes are odd numbers, therefore the answer is no.
What are all prime numbers that are odd numbers?
There is an infinite amount of prime numbers all of which are odd numbers
Are all square numbers even?
No - all squares of even numbers are even - while all squares of odd numbers are odd.
Are all odd numbers are divisible by 3?
No. 5 and 7 are odd numbers.
What are all the odd composite numbers 1-100?
Look for a table of prime numbers. All the odd numbers that are NOT on this list are composite numbers.
Number of odd numbers from 100 to 200?
Half of ALL numbers are odd. So half of those numbers are odd. Figure it out.
Which five odd numbers add to make fifty?
The given numbers are all odd. The sum of 5 odd numbers must be odd. 50 is not odd so there is no solution.
