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The factors of 10 are: 1, 2, 5, 10 The factors of 11 are: 1, 11 The factors of 12 are: 1, 2, 3, 4, 6, 12 The factors of 13 are: 1, 13 The factors of 15 are: 1, 3, 5, 15 The factors of 16 are: 1, 2, 4, 8, 16 The factors of 17 are: 1, 17 The factors of 18 are: 1, 2, 3, 6, 9, 18 The factors of 19 are: 1, 19 The factors of 20 are: 1, 2, 4, 5, 10, 20
They are: 12, 14, 15, 16 and 18
13
1217/18+42/3... First - deal with the whole numbers... 12+4=16.Next make both fractions have the same denominator. Since they're both factors of 18, make them both over 18, so you get 17/18+12/18. This equals 29/19 or 111/18 - now - add the original 16 (from the first bit) and your grand total is 1711/18
17
The factors of 10 are: 1, 2, 5, 10 The factors of 11 are: 1, 11 The factors of 12 are: 1, 2, 3, 4, 6, 12 The factors of 13 are: 1, 13 The factors of 15 are: 1, 3, 5, 15 The factors of 16 are: 1, 2, 4, 8, 16 The factors of 17 are: 1, 17 The factors of 18 are: 1, 2, 3, 6, 9, 18 The factors of 19 are: 1, 19 The factors of 20 are: 1, 2, 4, 5, 10, 20
The only number less than 100 with exactly nine factors is 36. 19 is not one of the factors.
The mode is 16.
The composite numbers between 11 and 19 are 12, 14, 15, 16 and 18
16
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
They are: 12, 14, 15, 16 and 18
5
The median of {10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20] is the 6th values which is 15.
18 has more factors than 19 and 25.
13
1217/18+42/3... First - deal with the whole numbers... 12+4=16.Next make both fractions have the same denominator. Since they're both factors of 18, make them both over 18, so you get 17/18+12/18. This equals 29/19 or 111/18 - now - add the original 16 (from the first bit) and your grand total is 1711/18