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Numbers without factors are PRIME Numbers.
Taking the first ten numbers.
1,2,3,4,5,6,7,8,9,10.
The prime numbers are 2,3,5,7, they have no factors.
4,6,8,9,10. Are not prime numbers as they have factors.
4 has a factor of '2'
6 has factors of '2 & 3'.
8 has factors of' 2 & 4'. or' 2,2,2.'
9 has factors of '3,3',
10 has factors of '2 5.'
'1' is unique
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What lists factors is it called common factors or composite number or multiple?
When you are finding common factors, one method is to list the factors.
What is a whole number that has more than two factors?
A composite number has three or more factors.
What is the number called when all its factors add up to twice the number?
multiply
When you have a number that has exactly two equal factors each factor is called?
If a number has equal factors, it is a perfect square and the equal factors would be square roots.
What does One of three factors of a number called?
If a number has three factors, it's a perfect square. One of those three factors (apart from 1 and the number itself) would be the square root.
What is it called when a number only has two factors?
A number that has only two factors is called a prime. The only factors of a prime are 1 and the number itself.
What is a number with two factors called?
a number with only 2 factors (1 and itself ) is called a prime number
What is a number that has an odd number of factors called?
a square number
What is a number with two or more factor called?
A COMPOUND number. e.g. 24 , 1,2,3,4,6,8,12,24 are all factors of '24'. NB A number that has no factors is a PRIME Number. e.g. 3,5,7,
What are the factors of two or more number called?
common factors
What is a number where its factors add up to itself called?
It is called a perfect number.
What is a number with 3 or more factors called?
A compound number has 3 or more factors, two of the factors being 1 and the number itself.
If a number has only two factors itself and 1 it is called a?
It is called a prime number
What is a number with exactly two factors called?
a prime number. it will have the factors 1 and it's self. ie. x has factors 1 and xA number with only two factors is a prime number
What is a number with only three factors called?
A square number
What is the number called that is multiplied by another number to get the product?
Factors
What is called The number of factors of a number?
the divisor function
