Q7Short answerExercise 1.2
Explain why 3 × 5 × 7 + 7 is a composite number.
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3×5×7+7 = 7 (3×5 + 1) = 7 (16), which has more than two factors.
Explain why 3 × 5 × 7 + 7 is a composite number.
3×5×7+7 = 7 (3×5 + 1) = 7 (16), which has more than two factors.