Ahmad lists all the common factors of 36 and 48. He then finds the sum of all these common factors. What is the sum?
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Worked Solution
Step 1: List all factors of 36.
Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36
Step 2: List all factors of 48.
Factors of 48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
Step 3: Identify the common factors (numbers in both lists).
Common factors: 1, 2, 3, 4, 6, 12
Step 4: Find the sum of all common factors.
1 + 2 + 3 + 4 + 6 + 12 = 28
Answer: 28
Correct answer: 28
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