If you're into KS3 Maths, you've probably met the friendly bunch called factors. Ever since you rocked your times tables, factors have been your pals. Now, in the world of algebra, factors become even more handy.
Factors of a number are the cool numbers that divide into it with no leftovers. Think of them as times table buddies. For example, 64 is friends with 1, 2, 4, 8, 16, 32, and 64 because they all fit into its times tables.
Make Learning Exciting - Explore how quizzes help[readmore]
But here's the trick: when you divide one number by another, it's only a factor if you get a whole number. Take a shot at the quiz to test your factor-finding skills. Go slow, read each question carefully, and show those factors who's boss!
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You can find more about this topic by visiting BBC Bitesize - Prime numbers, factors and multiples
If you divide 4 into 21 the answer is 5.25. Because the answer is NOT a whole number, 4 is NOT a factor of 21
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11 is the only one that can be divided into 33 and produce a whole number
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22 x 3 = 66
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The 25 times table goes from 50 to 75. 60 is not in it
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7 x 10 = 70
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26 x 3 = 78 and 27 x 3 = 81. 80 cannot be divided by 3 to a whole number
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The two numbers have that factor in common
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An easy one this. 2 x 16 = 32
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In all the incorrect answers there is a number that will not divide into 80 and give a whole number as the result
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In the correct answer, 40 cannot be divided into 100 and give a whole number as the result
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