12 and 3
10 and 5
three fives
five threes
fifteen ones
12 and 3
9 and 6
Six.
There are more than just prime and composite, there are 3 other types which you can describe a number by the kind of factors. They are abundant number, deficient number, and perfect number. An abundant number is a number which if its factors were all added up , the sum would be greater than the number itself. A deficient number is a number in which if all its factors were added up the sum would be less than the number itself. A perfect number is in which a numbers factors are added up and the sum will be the same number as the number itself. Example of abundant number: 12 because these are its factors, 1+2+3+4+6 which equals 16 and 16 is greater than 12. Example of a deficient number: 15 because 15's factors are 1+3+5 which equals 9 and 9 is less than 15. Example of a perfect number: 6 because 6's factors are 1+2+3 which equals 6 and 6 is the same as 6
The factors of 225 are: 1, 3, 5, 9, 15, 25, 45, 75, 225. The sum of the factors is: 403
2/5 plus 1/15 equals 6/15+1/15 equals 7/15.
Factors of 15 are: 1 3 5 and 15 of which 3 and 5 are prime factors
(-15) + 23 = 8
- 15. .__.
15+2
15 and 2
(15+7) +99
The sum of 15 and -52 is -37.
1 + 15 + 3 + 5 = 24
The sum of 45 and 15 equals 60. 15 x 3 equals 45.
35
1, 3, 5, 9, 15, 45 (sum = 78).
13
5 and 3.