1, 3, 5, 15
1, 2, 3, 6, 9, 18
1, 3, 7, 21
The factors of 15 are: 1, 3, 5, and 15.The prime factors of 15 are: 3 and 5.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.
The factors of 18 are: 1, 2, 3, 6, 9, and 18.The prime factors of 18 are: 2 and 3.The factors of 21 are: 1, 3, 7, and 21.The prime factors of 21 are: 3 and 7.
The four factors common to the numbers 9, 15, 18, 21, 30, 35, 36, 42, and 49 are 1, 3, 7, and 21. Each of these numbers can be divided evenly by these factors. However, they are not the only factors; these are simply the ones that appear in all the numbers listed.
The factors of 21 are 1, 3, 7, 21. The factors of 63 are 1, 3, 7, 9, 21, 63
Factors or 18: 1, 2, 3, 6, 9, 18 Factors of 21: 1, 3, 7, 21 They both have a factor of 3
It is: 21+18+15 = 54 and 54/3 = 18 which is the mean average
The factors of 21 are 1, 3, 7 and 21. The factors of 18 are 1, 2, 3, 6, 14 and 18. Therefore the common factors are 1 and 3.
The factors of 18 are: 1, 2, 3, 6, 9, 18The factors of 21 are: 1, 3, 7, 21
The factors of 15 are 1, 3, 5, and 15. The factors of 18 are 1, 2, 3, 6, 9, and 18. The common factors of 15 and 18 are 1 and 3.
The factors of 15 are: 1, 3, 5, 15 The factors of 18 are: 1, 2, 3, 6, 9, 18
The factors of 18 are: 1, 2, 3, 6, 9, 18 The factors of 21 are: 1, 3, 7, 21 The factors of 27 are: 1, 3, 9, 27
The factors of 15 are: 1, 3, 5, 15 The factors of 21 are: 1, 3, 7, 21 The factors of 33 are: 1, 3, 11, 33