Factors and Primes
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Is 378 divisible by 2? | Yes
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| Is 729 divisible by 10? | No
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| Is 590 divisible by 5? | Yes
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| Is 83,497 divisible by 2? | No
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| Is 972,552 divisible by 5? | No
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| Is 290 divisible by 10? | Yes
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| Is 540 divisible by 3? | Yes
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| Is 982 divisible by 9? | No
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| Is 12,451 divisible by 3? | No
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| Is 231,624 divisible by 9? | Yes
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| Is 258,493,556 divisible by 4? | Yes
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| Is 73,232 divisible by 8? | Yes
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| Is 1,423,829,888 divisible by 8? | Yes
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| How do you know if 2 is divisible to another number? | If the number is even it is divisible by 2.
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| How do you know if 5 is divisible to another number? | If the number ends in 5 or 0 it is divisible by 5.
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| How do you know if 10 is divisible to another number? | If the number ends in 0 it is divisible by 10.
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| How do you know if 3 is divisible to another number? | If the you add the digits of the number together and they are divisible by 3 then the number is divisible by 3.
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| How do you know if 9 is divisible to another number? | If the you add the digits of the number together and they are divisible by 9 then the number is divisible by 9.
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| How do you know if 6 is divisible to another number? | If the number is divisible by 2 and 3 then it is also divisible by 6.
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| How do you know if 4 is divisible to another number? | If the last 2 digits of the number are divisible by 4 then the number is divisible by 4
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| How do you know if 8 is divisible to another number? | !f the last 3 digits are divisible by 8 then the number is divisible by 3.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
jalapeno
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