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Why is it impossible to arrange the numbers 1 to 9 in a sum circle with all the numbers in the boxes being prime?
Wiki User
∙ 15y ago
The proof is easier than you might think. There are 5 odd numbers (1, 3, 5, 7, 9) in the range, but only four even numbers (2, 4, 6, 8). There are not, consequently, enough even numbers to separate all the odd numbers. Two odd numbers must inevitably appear next to each other somewhere in the circle, totalling a non-prime even number. Odd and even numbers must alternate all the way around a sum circle if it is to have prime values. This will only work with an even number of places in the circle.
Wiki User
∙ 15y ago
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How do you arrange numbers 1 through 8 in an order that the consective number is not in the same row?
Write them in a column. Since there is only one number per row, there is no chance of consecutive numbers being in the same row.
How do you find the percentage of a circle?
This question is unanswerable because it is not specified what is that is being taken as a percent of a circle.
What is Pi R Squared?
The formula to get the area of a circle ("R" being the radius of the circle). Radius means the distance from the center of the circle to the edge.It means pi times radius squared which is the formula for finding the area of a circle.
What is an angle whose vertex is at the center of a circle?
A central angle.The section of the circle formed by that angle and the part of the circle (the part being the circumference) between the radii is called a sector.
What is the mean of a set of numbers being 8?
First you find how many numbers there are, in this case the numbers all together being 8. Then you need to add all of the 8 numbers up and then you get your answer. Example: the numbers are 5,6,10,7,3,1,18,4 .... your answer will be 54 because you add the numbers up and you get your answer. hope this helps!
How do you arrange numbers 1 through 8 in an order that the consective number is not in the same row?
Write them in a column. Since there is only one number per row, there is no chance of consecutive numbers being in the same row.
What are the odds of guessing seven correct numbers?
The odds of guessing seven correct numbers in a typical lottery with 49 numbers is approximately 1 in 85 million. This calculation assumes that each number has an equal chance of being selected.
Does a semi circle have one side?
Being half of the circumference of a circle, a semi circle has one side
How many numbers in net work code?
4 numbers between 0 and 255, with the 4 numbers being separated by dots.4 numbers between 0 and 255, with the 4 numbers being separated by dots.4 numbers between 0 and 255, with the 4 numbers being separated by dots.4 numbers between 0 and 255, with the 4 numbers being separated by dots.4 numbers between 0 and 255, with the 4 numbers being separated by dots.4 numbers between 0 and 255, with the 4 numbers being separated by dots.4 numbers between 0 and 255, with the 4 numbers being separated by dots.4 numbers between 0 and 255, with the 4 numbers being separated by dots.4 numbers between 0 and 255, with the 4 numbers being separated by dots.4 numbers between 0 and 255, with the 4 numbers being separated by dots.4 numbers between 0 and 255, with the 4 numbers being separated by dots.
What is logically impossible?
Whatever is inconceivable (unthinkable) is logically impossible. A standard example is a circular square: since the properties of being circular and being square are incompatible, no individual can be a circular square. What is logically impossible is often contrasted with what is causally impossible. .
What is reading circle graphs?
When reading a circle graph it mainly talk about being part of one whole.like in a whole circle
Is a circle a function?
The shape of a circle IS capable of being described by an algebraic function. so no
What are the specifications of the circle being used to calculate constant pi?
Any circle will work!
What is the difference between ratio and rational numbers?
Rational numbers are equivalent to ratios of two integers (the denominator being non-zero). A ratio is a relationship between two set of values. For example, the ratio of the circumference of a circle to its diameter is pi, which is not a rational number.
What is untenable?
Being such that occupation or habitation is impossible
What is meant by a circle being circumscribed about a polygon?
It means drawing a circle around a polygon in such that each vertex of the polygon is on the circumference of the circle.
How do you find the percentage of a circle?
This question is unanswerable because it is not specified what is that is being taken as a percent of a circle.
