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Here are some tips for Divisibility Rules, which aligns with Hawaii state standards:
Divisibility Rules
In this topic, you must list all of the factors of a number. To succeed, you
must be good at your divisibility rules.
Here are some divisibility rules that should help: Divisibility by 2: If the number ends in 0,2,4,6, or 8, it is divisible by 2. Divisibility by 3: If the sum of the digits is divisible by 3, the number is divisible by 3. Example: 27 is divisible by 3 because 2 + 7 = 9, which is divisible by 3. Divisibility by 4: If the last two digits are divisible by 4. Divisibility by 5: If the number ends in 0 or 5, it is divisible by 5. Divisibility by 6: If the number is divisible by 2 and 3. Divisibility by 9: If the sum of the digits is divisible by 9. Divisibility by 10: If the last digit is 0. Example: Factor 18: Everything is divisible by 1, giving us the factors 1 and 18 18 is divisible by 2, giving us 2 and 9 18 is divisible by 3, giving us 3 and 6 Answer: 1 2 3 6 9 18
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