Explain why 7×9×13×15+15 is a composite number.
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Answer:
Composite number are the numbers which have factors other than 1 and the number itself.
Given number,
7×9×13×15+15×14
15(7×9×13+14)
Since this number have factors other than 1 and the number itself, it is a composite number.
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Answered by
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Step-by-step explanation:
7×9×13×15+15
= 13 ( 7×9×15+1)
= 13 ( 945 + 1)
= 13 × 946
= 1 × 13 × 94
Therefore, It is a composite number because is has 3 factor.
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