How do you find a number that has 8 factors?
So 3, 5, 7, 15, 21, 35, 1 and the number itself must all be factors of the number – which makes 8 factors. So the number must be 3\times5\times7 = 105, and the sum of all of the factors is 1 + 3 + 5 + 7 + 15 + 21 + 35 + 105 = 192.
What is the smallest positive integer with exactly 8 factors?
24
Therefore, smallest number that has exactly 8 factors = 24. What is the smallest number with exactly five factors?
What number has 8 factors and is less than 100?
Given n , I need the number of numbers which have exactly 8 divisors. Below 100 there are 10 numbers which satisfy the above condition. 24, 30, 40, 42, 54, 56, 66, 70, 78 and 88 .
What is the smallest positive integer that has 6 8 and 10 as a factor?
And obviously the lowest positive integer is S, so the lowest possible value of N, the lowest number which is a multiple of 6, 8 and 10, is 120*1 = 120. So the lowest common multiple of 6, 8 and 10 is 120.
How many factors are there in 8?
four factors
The factors of 8 are the numbers that divide 8 exactly without leaving any remainder. There are four factors of 8, they are 1, 2, 4, and 8.
What multiple of 8 is also a factor of 8?
Thus, as per the definition given above, the multiple of 8 is obtained by multiplying some integer with 8. For example, 48, 56, 64 and 96 are all multiples of 8 for the following reasons….8, 16, 24, 32,….., 72, 80, 88,….
| 8 × 6 = 48 | 8 multiplied by 6 to get 48 |
|---|---|
| 8 × 12 = 96 | 8 multiplied by 12 to get 96 |
What are the multiples of 8?
First, let’s list the first several multiples of eight: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88 . . .
What is the smallest positive integer that has exactly 12 positive?
This means that 60, 72, and 84 should be the smallest three numbers with 12 factors.
What number has 8 factors and is less than 30?
Solution: The even number below 30 having 8 factors will be 24.
What is the smallest positive integer with exactly 10 factors?
The required smallest number with 10 different factors is 72.
Which of the following is a factor of 15?
The factors of 15 are 1, 3, 5, and 15.
Is 15 a multiple of each of its factors?
The terms factor and multiple are sometimes confused with each other. Factors of 15 include 3 and 5; multiples of 15 include 30, 45, 60 (and more). See more below and at multiple.
How many factors does a positive integer have?
Boost your efficiency with refactorings, code analysis, unit test support, and an integrated debugger. A positive integer has exactly 8 factors, two of them are 21 and 35. I know the positive integer which is 105 and also know that one of the factors is 15.
How do you find the factor pair of a whole number?
Start with the number 1 and find the corresponding factor pair: n ÷ 1 = n. So 1 and n are a factor pair because division results in a whole number with zero remainder. Do the same with the number 2 and proceed testing all integers (n ÷ 2, n ÷ 3, n ÷ 4…
Why does the calculator only show positive and negative factors?
For positive integers the calculator will only present the positive factors because that is the normally accepted answer. For example, you get 2 and 3 as a factor pair of 6. If you also need negative factors you will need to duplicate the answer yourself and repeat all of the factors as negatives such as -2 and -3 as another factor pair of 6.
How many factors does a certain number have?
A certain number has exactly eight factors including and itself. Two of its factors are and . What is the number? If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.