AnswersDriveTriangular Numbers
| So the hundredth triangular number is: | 100 101 | = 5050 |
|---|---|---|
| 2 |
What are all the triangular numbers?
0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300, 325, 351, 378, 406, 435, 465, 496, 528, 561, 595, 630, 666
1
What is the cubic number?
A cubic number is a figurate number of the form with a positive integer. The first few are 1, 8, 27, 64, 125, 216, 343, (OEIS A000578).
2
What is the number cube?
The result of using a whole number in a multiplication three times. Example: 3 × 3 × 3 = 27, so 27 is a cube number. Here are the first few cube numbers: 1 (=1×1×1)
3
What are the cube numbers up to 100?
Square, Cube, Square Root and Cubic Root for Numbers Ranging 0 - 100
| Number x | Square x2 | Cube x3 |
|---|---|---|
| 3 | 9 | 27 |
| 4 | 16 | 64 |
| 5 | 25 | 125 |
| 6 | 36 | 216 |
4
What are the prime numbers from 1 to 100?
When a number has more than two factors it is called a composite number. Here are the first few prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, etc.
5
What is an example of a perfect cube?
A perfect cube is a number that is the cube of an integer. Some examples of perfect cubes are 1, 8, 27, 64, 125, 216, 343, .. The opposite of cubing a number is finding the cube root.
6
What number is a perfect cube?
Is 19683 a perfect cube?
| Number | Cube | Digital Root of the cube |
|---|---|---|
| 3 | 27 | 9 (or 0) |
| 4 | 64 | 1 |
| 5 | 125 | 8 |
| 6 | 216 | 9 (or 0) |
7
What is the perfect square of 256?
Perfect Square:
| Positive Integer | Integer Squared= | Square Root of Perfect Square= |
|---|---|---|
| 16 | 16 ^2 = | √ 256 = |
| 17 | 17 ^2 = | √ 289 = |
| 18 | 18 ^2 = | √ 324 = |
| 19 | 19 ^2 = | √ 361 = |
8
What is the square roots of 256?
−16 is also a square root of 256. 162=(−16)2=256. By definition, the principal square root of a number is the positive square root. The term "the square root" is commonly used to refer to the principal (positive) root though there are usually two roots. √x2=|x|
9
What is √ 144?
While -12 is "a square root" of 144, the square root operation here denotes a function from nonnegative real numbers to nonnegative real numbers. A function can only produce a single result. So the expresion evaluates to the positive root 12. 144 has two roots, yes: .
10
What is 3 5 out of 50?
If you're having trouble multiplying fractions with whole numbers, just multiply the numerator of the fraction by the whole number, then divide by the denominator. In this case, you should get (3*50)/5 = 30.
12
Which area code is 289?
Area codes 905, 289, and 365 are area codes in the North American Numbering Plan (NANP) in Southern Ontario, Canada, particularly covering the Niagara Peninsula, the city of Hamilton, Halton Region, Peel Region, York Region, Durham Region, and parts of Northumberland County.
13
Is the number 289 prime?
To be 289 a prime number, it would have been required that 289 has only two divisors, i.e., itself and 1. However, 289 is a semiprime (also called biprime or 2-almost-prime), because it is the product of a two non-necessarily distinct prime numbers. Indeed, 289 = 17 x 17, where 17 is a prime number.
14
Is the number 1681 Prime?
Why 1681 is not a prime number? Because 1681 has divisors rather than 1 and itself. 1681 can be divided by 41 and .
15
Is the number 293 a prime number?
For 293, the answer is: yes, 293 is a prime number because it has only two distinct divisors: 1 and itself (293).
16
Is the number 57 a prime number?
57 has an aliquot sum of 23 and is the first composite member of the 23-aliquot tree. Although 57 is not prime, it is jokingly known as the "Grothendieck prime" after a story in which mathematician Alexander Grothendieck supposedly gave it as an example of a particular prime number. 57 is a 20-gonal number.
17
Is the number 121 prime?
To be 121 a prime number, it would have been required that 121 has only two divisors, i.e., itself and 1. However, 121 is a semiprime (also called biprime or 2-almost-prime), because it is the product of a two non-necessarily distinct prime numbers. Indeed, 121 = 11 x 11, where 11 is a prime number.
18
Is Prime 173?
Is 173 a prime number? For 173, the answer is: yes, 173 is a prime number because it has only two distinct divisors: 1 and itself (173).
19
Is the number 153 a prime?
No the number 153 is not a prime number. One hundred and fifty-three is a composite number. Because 153 has more divisors than 1 and itself.