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How are odd and even numbers are related to their factors?
Even numbers must have 2 amongst their factors; they may have other even numbers amongst their factors. Odd numbers must not; every factor of an odd number must be odd.
What types of numbers has an odd number of factors?
Even powers of prime numbers. Square numbers have an odd number of factors.
How many even numbers in the number 300?
150 (half, the other half are odd numbers)
Do odd numbers have a odd or even number of factors?
The number of factors can be either even or odd.
Do only square numbers have an even number of factors?
No, only square numbers have an odd number of factors.
What is the meaning of even and odd factors?
All nonzero numbers have factors. Some factors are even numbers, some factors are odd numbers.
Does even or odd numbers have more factors?
Some even numbers have more factors than some odd numbers and some odd numbers have more factors than some even numbers. As a group, even numbers have more factors than odd numbers.
Do odd or even numbers have more factors?
Some even numbers have more factors than some odd numbers and some odd numbers have more factors than some even numbers. As a group, even numbers have more factors than odd numbers.
What type of number has odd numbers as factors?
Both odd and even numbers may have odd numbers as factors.
How are odd and even numbers are related to their factors?
Even numbers must have 2 amongst their factors; they may have other even numbers amongst their factors. Odd numbers must not; every factor of an odd number must be odd.
What types of numbers has an odd number of factors?
Even powers of prime numbers. Square numbers have an odd number of factors.
Is the greatest common factor of any 2 odd numbers odd?
Not only can they, but they must. An odd number cannot have an even factor. So none of the factors of either of the two odd numbers can be even and so the GCF is made up of only odd factors and so it must be odd.
Is the GCF of any two numbers always odd and why?
The GCF of any two odd numbers is always odd because odd numbers don't have any even factors. The GCF of any two even numbers is always even because even numbers are divisible by two and any common factors would have at least one two in common. The GCF of an even and an odd number is odd because odd numbers don't have any even factors.
Can two odd numbers have an even greatest common factor?
No. Odd numbers don't have even factors.
What is a number has an odd number of factors?
An even power. Square numbers have an odd number of factors.
Do all even numbers have only even numbers for factors?
At least one of the factors of an even number must be even, because the product of odd factors is always odd.
Do odd numbers have an odd or even number of factors?
Both. 9 has three factors. 11 has two factors.
