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Composite numbers having three factors are the squares of all prime numbers. Examples are 4 (1 2 4), 9 (1 3 9), 25 (1 5 25), 49 (1 7 49), 121 (1 11 121), 169 (1 13 169), 289 (1 17 289), 361 (1 19 361), etc.

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17y ago

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What does composite factors mean?

All numbers have factors. Some factors are prime numbers, some are composite numbers, one is neither. The factors of 12 are 1, 2, 3, 4, 6, 12 Since 4, 6 and 12 are composite numbers, they are the composite factors of 12.


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