31
Using the definition that proper factors do not include 1 and the number itself, prime numbers do not have proper factors.
1:
2:
3:
4: 2
5:
6: 2, 3
7:
8: 2, 4
9: 3
10: 2, 5
11:
12: 2, 3, 4, 6
13:
14: 2, 7
15: 3, 5
16: 2, 4, 8
17:
18: 2, 3, 6, 9
19:
20: 2, 4, 5, 10
21: 3, 7
22: 2, 11
23:
24: 2, 3, 4, 6, 8, 12
25: 5
26: 2, 13
27: 3, 9
28: 2, 4, 7, 14
29:
30: 2, 3, 5, 6, 10, 15
31:
32: 2, 4, 8, 16
33: 3, 11
34: 2, 17
35: 5, 7
36: 2, 3, 4, 6, 9, 12, 18
37:
38: 2, 19
39: 3, 13
40: 2, 4, 5, 8, 10, 20
41:
42: 2, 3, 6, 7, 14, 21
43:
44: 2, 4, 11, 22
45: 3, 5, 9, 15
46: 2, 23
47:
48: 2, 3, 4, 6, 8, 12, 16, 24
49: 7
50: 2, 5, 10, 25
The proper factors of 30 are: 1 ,2, 5, 10 and 15. Proper factors are all the numbers that equally go into a number except the number itself! :)
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Why are 3 and 6 excluded?
Do you mean of 30? if so then it is 1*30, 2*15, 3*10 and 5*6
Out of that list, the only number that has proper factors is 4. The proper factor of 4 is 2.
i do not know
1, 2, 3, 5, 6, 10, 15, 30
One doesn't have any proper factors.
1, 2, 3, 5, 6, 10, 15, 30
Of the numbers from 1 to 30, only 30 has all three of those numbers as factors.
Prime numbers don't have proper factors.
There are not common factors of 30 because there cannot be common factors without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The prime factors of 30 are 2, 3, and 5.
You need 2 numbers to work out any common factors...You are looking for any factors which are common to both numbers.
23 is prime. Prime numbers don't have proper factors.
The factors of all the numbers 1 through 30 include all the numbers 1 through 30.
The proper factors of 30 are 2, 3, 5, 6, 10 and 15
The factors of 97 are 1 and 97. Prime numbers don't have "proper" factors.
Of the numbers from 1 to 30, only 30 has all three of those numbers as factors.
the proper factors are the factors of a number not including the number itself, or 1.
No 9 is not prime. It's factors are 1,3,9. Proper factors: 1,3. Factors are numbers that are multiplied with other numbers to get a product. Proper factors are factors of a number except for itself. No 9 is not prime. It's factors are 1,3,9. Proper factors: 1,3. Factors are numbers that are multiplied with other numbers to get a product. Proper factors are factors of a number except for itself. Composite numbers are numbers with more than 2 factors and more than 1 proper factor. Prime is the opposite of composite.
You might be thinking of proper factors. Proper factors are just like the set of regular factors, except for 1 and the number itself.
41 is prime, therefore the factors are 1 and 41. Prime numbers don't have "proper" factors.
13 is a prime number so the only factors are 1 and itself. Prime numbers have no proper factors.
No 9 is not prime. It's factors are 1,3,9. Proper factors: 1,3. Factors are numbers that are multiplied with other numbers to get a product. Proper factors are factors of a number except for itself. Composite numbers are numbers with more than 2 factors and more than 1 proper factor. Prime is the opposite of composite.
Since 59 is prime, the only factors are 1 and 59. Prime numbers don't have "proper" factors.
47 is a prime, so its only factors are 1 and 47. Prime numbers don't have "proper" factors.