One pair: it's a prime number.
560 is one such.
The difference is between factor pairs and distinct factors. With square numbers, one of the factor pairs will be the same number twice. When listing the distinct factors, that number is only listed once.
No, you should continue checking for factor pairs even if you find a pair that repeats. A repeating pair indicates that the number is not a prime number, but there may be other factor pairs that have not been identified yet. It is important to exhaust all possible factor pairs to ensure that all factors of the number are identified accurately.
Oh, what a lovely question! When we talk about factor pairs for a number, we're looking at pairs of numbers that multiply together to give us that number. Arrays, on the other hand, are rectangular arrangements of objects. While the number of factor pairs for a number may not always be the same as the number of arrays for that number, both concepts help us explore the beauty of numbers in different ways.
One pair: it's a prime number.
Factor pairs are two numbers multiplied together to get one number. Examples: One factor pair of 24 is 4, 6. One factor pair of 70 is 5, 14. One factor pair of 144 is 12, 12.
36, for one.
560 is one such.
One divides any number
its a factor with two pairs of the same number
Factors come in pairs. If you know one factor, divide it into the number. The answer will be another factor.
These are the 16 factor pairs for the number 1,080:1080,1540,2360,3270,4216,5180,6135,8120,9108,1090,1272,1560,1854,2045,2440,2736,30
The difference is between factor pairs and distinct factors. With square numbers, one of the factor pairs will be the same number twice. When listing the distinct factors, that number is only listed once.
A square number has an odd number of factors, but a number with an odd number of factor pairs is nothing special.
Itself and one because 61 is a prime number
Number of factor pairs = number of rectangles