Page 32 - NUMINO_WB_5A
P. 32
099-B1-2

Common Factors

1. Find the common factors of two numbers.

Example on the factors of 36.

Mark on the factors of 18 and mark

123456789
10 11 12 13 14 15 16 17 18
19 20 21 22 23 24 25 26 27
28 29 30 31 32 33 34 35 36

The common factors of 18 and 36 are , , , , , and .

a. Mark on the factors of 15 and mark on the factors of 30.

123456 7 8 9 10
20
11 12 13 14 15 16 17 18 19 30
40
21 22 23 24 25 26 27 28 29

31 32 33 34 35 36 37 38 39
The common factors of 15 and 30 are , , , and .

b. Mark on the factors of 12 and mark on the factors of 24.

123456789 10 11 12
24
13 14 15 16 17 18 19 20 21 22 23

21 22 23 24 25 26 27 28 29 30 30
Th3e1com3m2on fa3c3tors o3f412 a3n5d 24 a3r6e 3,7 , 38 , 39, ,4a0nd 40.
   27   28   29   30   31   32   33   34   35   36   37