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For a number to be divisible by 105 it must be divisible by 3, by 5 and by 7. So, divisibility by 3 requires all three of the following to be satisfied:

- Sum the digits together. Repeat if necessary. If the answer is 0, 3, 6 or 9 the original number is divisible by 3.
- If the final digit of the number is 0 or 5, the original number is divisible by 5.
- Take the number formed by all but the last digit. From it subtract double the last digit. Keep going until there is only one digit left. If it is 0 or 7 then the original number is divisible by 7.

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Q: What is the divisibility rules of 105?

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Jason Delaware

i think divisibility rules help with fractions because it helps you reduce the fraction to make i a simple fraction.

3 and 9. And they divide into 123456789 whether or not you use divisibility rules!

0.4557

The rule for 1 and the rule for 3.

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fractions help you write out divisibility rules because divisibility rules help with fractions . Glad I would help good bye

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The divisibility rules for a prime number is if it is ONLY divisible by 1, and itself.

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You can always check on the divisibility of a number by dividing it into another number. But if you know the divisibility rules, you can get that information easier and faster.

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i think divisibility rules help with fractions because it helps you reduce the fraction to make i a simple fraction.

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3 and 9. And they divide into 123456789 whether or not you use divisibility rules!