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With repetition, there are 86 ( = 262144) such numbers. Without repetition, there are still 8!/2! = 20160.
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Natural numbers are part of every other category of number except?
irrational numbers
Is every real number a complex number?
A complex number is a number of the form a + bi, where a and b are real numbers and i is the principal square root of -1. In the special case where b=0, a+0i=a. Hence every real number is also a complex number. And in the special case where a=0, we call those numbers pure imaginary numbers. Note that 0=0+0i, therefore 0 is both a real number and a pure imaginary number. Do not confuse the complex numbers with the pure imaginary numbers. Every real number is a complex number and every pure imaginary number is a complex number also.
Are even numbers closed for addition?
Yes, the sum of any two even numbers is an even number. This means they are closed under addition. Closure Property: For every even number a, for every even number b, a + b is an even number.
What two numbers do every number greater than 1 have as factors?
Every number greater than 1 has the two factors 1 and the number itself.
Is every whole number positive?
No, a whole number can either be an even or odd number as long as it doesn't contain a fraction.Whole Numbers: 1, 2, 874687, 99, 681444NOT Whole Numbers: 1/2, 9/85, .55454---Yeah, but the question is asking if every whole number is a positive, not odd. So, yes all whole numbers are positive. If every whole number isn't positive that is saying that every whole number is an integer. Integers include positive and negative numbers and 0 on the number line. Whole numbers are 0, 1, 2, 3,... and Natural numbers are 1, 2, 3,... Integers are...-2, -1, 0, 1, 2,....
What do the numbers in a currency serial number stand for?
They're simply sequential numbers printed on the bills by a device that looks a bit like an old-fashioned mechanical odometer in a car. Every bill that's printed clicks the counter up by one digit. Except for "unusual" numbers (e.g. 00000005, 33333333, 12345678, etc.) the serial number on a bill does not affect its value.
Is every number a rational number?
No but every integer is a rational number and numbers that can be expressed as fractions are also rational numbers
What prime number can you make out of 0123456789?
Every 9-digit combination of those numbers is a multiple of 3. None of them will be prime.
What are the 10000 combinations that are possible with a four digit combination ranging with numbers 0-9?
every number from 0000 to 9999
Is every rational number a whole number?
No. Every rational number is not a whole number but every whole number is a rational number. Rational numbers include integers, natural or counting numbers, repeating and terminating decimals and fractions, and whole numbers.
Is every real number is rational?
No. Every real number is not a natural number. Real numbers are a collection of rational and irrational numbers.
Does every combination of numbers have a GCF?
no it depends on what number it is ex. 36 what is the greatest commen factor? Can YOU figure it out? Answer:18 times 2
Every integer is a complex number?
Yes. Every integer is a rational number. Every rational number is a real number. Every real number is a complex number. The complex numbers include all real numbers and all real numbers multiplied by the imaginary number i=sqrt(-1) and all the sums of these.
Is every irrational number a real number and how?
The set of real numbers is defined as the union of all rational and irrational numbers. Thus, the irrational numbers are a subset of the real numbers. Therefore, BY DEFINITION, every irrational number is a real number.
Is every whole number a natural integer and a rational number?
Every whole number is rational and an integer. But the "natural" numbers are definedas the counting numbers, so the negative whole numbers wouldn't qualify.No and yes: it is not a natural number but it is a rational number.
If every number is a prime number what are the three numbers?
The premise of your questions is false: NOT every number is a prime number.
Is every real number a natural number?
No. There are infinitely many real numbers for every natural number.
