Multiple of 4
Below is a list of the first 50 multiples of 4. From the list, we can see that, the first two digits of the numbers repeat after 100.04 | 08 | 12 | 16 | 20 |
24 | 28 | 32 | 36 | 40 |
44 | 48 | 52 | 56 | 60 |
64 | 68 | 72 | 76 | 80 |
84 | 88 | 92 | 96 | 100 |
104 | 108 | 112 | 116 | 120 |
124 | 128 | 132 | 136 | 140 |
144 | 148 | 152 | 156 | 160 |
164 | 168 | 172 | 176 | 180 |
184 | 188 | 192 | 196 | 200 |
Therefore, we can conclude that
If the first two digits of a number is a multiple of 4, then the number if a multiple of 4.For example,
Is 2973648 a multiple of four?
The first 2 digits of the number is 48, and 48 is a multiple of 4, hence 2973648 is a multiple of 4.
Let's see another example:
Is 987654324682 a multiple of four?
The first 2 digits of the number is 82, and 82 is not a multiple of 4, hence 987654324682 is not a multiple of 4.
Multiple of 8
A similar rule can be applied to identify the multiple of 8.If the first three digits of a number is a multiple of 8, then the number if a multiple of 8.For example,
Is 2973648 a multiple of eight?
The first 3 digits of the number is 648, and 648 is a multiple of 8, hence 2973648 is a multiple of 8.
Let's see another example:
Is 987654324682 a multiple of four?
The first 3 digits of the number is 682, and 682 is not a multiple of 8, hence 987654324682 is not a multiple of 8.
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