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Is 63 a deficient number?
All odd numbers with one or two distinct prime factors are deficient. Since 3 and 7 are factors of 63, it must be deficient.
Is the number 17 a Deficient number?
17 is a deficient number because half the sum its factors is less than 17 [(1 + 17)/2 = 9)]. All odd numbers less than 945 are deficient.
Is any prime number have to be deficient?
All prime numbers are deficient.
Do all odd numbers have other odd numbers as their factors?
Yes, the factors of all odd numbers are odd numbers.
Are all deficint numbers odd numbers?
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.
Are all prime numbers deficient?
Yes.
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 there more deficient numbers than abundant and perfect numbers?
There are more deficient 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.
