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11 Cards in this Set
- Front
- Back
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Common Factors
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Factors that are the same for two or more numbers.
Factors of 8: 1, 2, 4, 8 Factors of 12: 1, 2, 3, 4, 6, 12 Common Factors of 8 and 12: 1, 2, 4 |
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Divisibility Rule for 2
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Ends in even number, including 0.
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Divisibility Rule for 3
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Sum of digits is divisible by 3.
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Divisibility Rule for 4
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Number formed by last two digits is divisible by 4.
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Divisibility Rule for 5
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Ends in 0 or 5.
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Divisibility Rule for 6
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Divisible by 2 and 3 (use both rules)
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Divisibility Rule for 7
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No simple rule.
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Divisibility Rule for 8
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Number formed by last three digits is divisible by 8.
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Divisibility Rule for 9
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Sum of digits is divisible by 9.
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Factors
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Whole numbers that when multiplied together yield the number or product
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Greatest Common Factor (GCF)
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Largest common factor of two or more numbers
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