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What is a positive integer with only one factor?
The positive integer with only one factor is 1.
What is the formula to a factor a difference of perfect squares?
a2 - b2 = (a + b)(a - b).
How many distinct positive integer factor does the number 80 have?
10 of them.
What are the numbers that are not prime or composite?
A prime number is a number with two positive integer factors, while a composite number has more than two positive integer factors. Since the number 0 has no positive integer factors, and the number 1 has just one positive integer factor (itself), neither of these are prime.
Why is 1 and 0 nor prime or composite?
A prime number has two positive integer factors, itself and 1. The number 0 has no positive integer factors, and is therefore not prime. The number 1 has just a single positive integer factor, and once again, is not prime.
Is the least common factor of any two positive integer 1?
Yes it is. One is a factor of every positive integer.
What is a positive integer with only one factor?
The positive integer with only one factor is 1.
What is the smallest factor of a number?
The smallest positive factor of any positive integer is the number 1. If negative factors are allowed, the smallest factor is the negative of the absolute value of any integer.
what is a factor that is a perfect square and not equal to 1?
A factor that is a perfect square and not equal to 1 is a number that can be expressed as the product of an integer multiplied by itself, such as 4, 9, 16, 25, etc. These numbers have integer square roots and are considered perfect squares because they result from squaring an integer. Perfect squares greater than 1 have factors other than 1 and themselves, making them unique in their factorization.
What is a perfect square factor?
All numbers have factors. Some factors are perfect squares. We call these perfect square factors. 9 is a perfect square factor of 27.
What is the greatest factor of 22?
The greatest factor of any positive integer is itself.
What is the lowest factor for 86?
1. It is the lowest factor of any [positive] integer.
Why is 1 the least common integer?
1 is the least common factor of any set of positive integers because 1 is a factor of all nonzero integers and 1 is the smallest positive integer.
What is the formula to a factor a difference of perfect squares?
a2 - b2 = (a + b)(a - b).
What are the lowest factor of 72?
The lowest factor of any positive integer is 1.
How many distinct positive integer factor does the number 80 have?
10 of them.
How many positive integers less than 2008 have an even number of divisors?
There are 1,963 such integers. Every factor of a number has a pair. The only time there will be an odd number of factors is if one factor is repeated, ie the number is a perfect square. So the question is really asking: how many positive integers less than 2008 (in the range 1 to 2007) are not perfect squares. √2007 = 44 and a bit (it lies between 44 and 45) So there are 44 integers less than (or equal to) 2007 which are perfect squares → 2007 - 44 = 1963 integers are not perfect squares in the range 1-2007 and have an even number of factors (divisors).
