Question

Give the first five terms of the sequence of
A) even numbers
B) odd numbers
C) prime numbers
D) multiples of 5

Answer 1

Step-by-step explanation:

Write all the factors of the following numbers:

(a) 24 (b) 15 (c) 21 (d) 27 (e) 12 (f) 20 (g) 18 (h) 23 (i) 36

Answer:

(a) 24 = 1 * 24

24 = 2 * 12

24 = 3 * 8

24 = 4 * 6

24 = 6 * 4

So, the factors of 24 = 1, 2, 3, 4, 6, 12, 24

(b) 15 = 1 * 15

15 = 3 * 5

15 = 5 * 3

So, the factors of 15 = 1, 3, 5, 15

(c) 21 = 1 * 21

21 = 3 * 7

21 = 7 * 3

So, the factors of 21 = 1, 3, 7, 21

(d) 27 = 1 * 27

27 = 3 * 9

27 = 9 * 3

So, the factors of 27 = 1, 3, 9, 27

(e) 12 = 1 * 12

12 = 2 * 6

12 = 3 * 4

12 = 4 * 3

12 = 6 * 2

So, the factors of 12 = 1, 2, 3, 4, 6, 12

(f) 20 = 1 * 20

24 = 2 * 10

24 = 4 * 5

24 = 5 * 4

24 = 10 * 2

So, the factors of 20 = 1, 2, 4, 5, 10, 20

(g) 18 = 1 * 18

18 = 2 * 9

18 = 3 * 6

So, the factors of 18 = 1, 2, 3, 6, 18

(h) 23 = 1 * 23

So, the factors of 23 = 1, 23

(i) 36 = 1 * 36

36 = 2 * 18

36 = 3 * 12

36 = 4 * 9

36 = 6 * 6

So, the factors of 36 = 1, 2, 3, 4, 6, 9, 12, 18, 36