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 Playing with Numbers 20 Flashcards |
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What is a prime number? |
Card: 1 / 20 |
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A prime number is a number greater than 1 that has exactly two factors: 1 and itself. |
Card: 2 / 20 |
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True or False: Every number is a multiple of 1. |
Card: 3 / 20 |
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True |
Card: 4 / 20 |
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What is the Highest Common Factor (HCF) of 36 and 48? |
Card: 5 / 20 |
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The HCF of 36 and 48 is 12. |
Card: 6 / 20 |
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Fill in the blank: The sum of the factors of 6, excluding itself, equals ___. |
Card: 7 / 20 |
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6 |
Card: 8 / 20 |
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What is the definition of a composite number? |
Card: 9 / 20 |
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A composite number is a number greater than 1 that has more than two factors. |
Card: 10 / 20 |
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True or False: 1 is classified as a prime number. |
Card: 11 / 20 |
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False; 1 is neither prime nor composite. |
Card: 12 / 20 |
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What is the prime factorization of 60? |
Card: 13 / 20 |
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2² × 3 × 5 |
Card: 14 / 20 |
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Fill in the blank: A perfect number is equal to the sum of its factors excluding ___. |
Card: 15 / 20 |
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Itself |
Card: 16 / 20 |
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What is the common factor of 18 and 24? |
Card: 17 / 20 |
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The common factors are 1, 2, 3, and 6. |
Card: 18 / 20 |
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True or False: All multiples of a number are less than that number. |
Card: 19 / 20 |
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False; all multiples of a number are equal to or greater than that number. |
Card: 20 / 20 |
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