Which of the following numbers is NOT a factor of 48?
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Worked Solution
Step 1: A number is a factor of 48 if it divides 48 exactly (no remainder).
Step 2: Test each option.
48 ÷ 6 = 8 → exact, remainder 0 → 6 IS a factor.
48 ÷ 8 = 6 → exact, remainder 0 → 8 IS a factor.
48 ÷ 9 = 5 remainder 3 → NOT exact → 9 is NOT a factor.
48 ÷ 12 = 4 → exact, remainder 0 → 12 IS a factor.
Step 3: Only 9 does not divide 48 exactly.
Answer: 9.
Answer: 9
Correct answer: 9
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