Multiples
First 10 multiples of 2
2, 4, 6, 8, 10, 12, 14, 16, 18, 20
Factors of 10
1, 2, 5, 10
3 x 9
21
3:00pm in 24 hr time
15:00
Is 11,125 divisible by 2?
No, because it ends with an odd number therefore, it is not divisible by 2.
First 6 multiples of 5
5, 10, 15, 20, 25, 30
Factors of 25
1, 5, 25
5 x 9
45
18:00 in 12hr time
6:00pm
Is 65,700 divisible by 10?
Yes, because it ends in a 0
First 6 multiples of 7
7, 14, 21, 28, 35, 42
Factors of 45
1,4, 5, 9, 15, 45
7 x 8
56
20:30 in 12 hr time
8:30pm
Is 142,239 divisible by 5?
No, it does not end with a 5 or 0 therefore, I know it is not divisible by 5.
First 8 multiples of 9
9, 18, 27, 36, 45, 54, 63, 72
Factors of 30
1, 2, 3, 5, 6, 10, 15, 30
10 x 12 +13
120 + 13= 133
11:30pm in 24hr time
23:30
Is 235,349 divisible by 3?
2+3+5+3+4+9=26, 26 is not a multiple of 3, therefore it is not divisible by 3.
First 7 multiples of 12
12, 24, 36, 48, 60, 72, 84
Factors of 48
1, 2, 3, 4, 6, 8, 12, 16, 24, 48
11 x 16
176
12:30am in 24hr time
00:30
Is 273,891 divisible by 9?
2+7+3+8+9+1= 30, 30 is not a multiple of 9, therefore it is not divisible by 9.