Learn the 17 times table with patterns and tips. Build fluency, spot links to primes and factors, and use seventeen facts to solve real KS3 maths problems.
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102 has 8 factors: 1, 2, 3, 6, 17, 34, 51 and 102
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10 x 17 = 170 and 5 x 17 = 85 so 170 + 85 = 15 x 17
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2 x 17 = 34 so 20 x 17 = 340. Therefore, 340 - 34 = 18 x 17
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15 x 17 = 255 and 255 - 17 = 238
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5 x 17 = 85 and 85 - 17 = 68
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34 has only 4 factors: 1, 2, 17 and 34
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17 is the square root of 289
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10 x 17 = 170 and 3 x 17 = 51 so 13 x 17 = 170 - 51
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15 x 17 = 255 and 255 + 17 = 272
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2 x 17 = 34 so 20 x 17 = 340
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