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Find the sum of all the common factors of 8 and 52.Multiply the result by the first common multiple of 3 and 7.What is the answer?

Question

Find the sum of all the common factors of 8 and 52.

Multiply the result by the first common multiple of 3 and 7.

What is the answer?

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Solution

1. Break Down the Problem

  1. Find the common factors of 8 and 52.
  2. Calculate the sum of the common factors.
  3. Find the first common multiple of 3 and 7.
  4. Multiply the sum of the common factors by the first common multiple.

2. Relevant Concepts

  • Common factors are numbers that can divide both numbers without a remainder.
  • The least common multiple (LCM) is the smallest positive integer that is a multiple of both numbers.

3. Analysis and Detail

Step 1: Find the common factors of 8 and 52.

  • Factors of 8: 1,2,4,8 1, 2, 4, 8
  • Factors of 52: 1,2,4,13,26,52 1, 2, 4, 13, 26, 52
  • Common factors: 1,2,4 1, 2, 4

Step 2: Calculate the sum of the common factors.

Sum=1+2+4=7 \text{Sum} = 1 + 2 + 4 = 7

Step 3: Find the first common multiple of 3 and 7.

The multiples of 3 are: 3,6,9,12,15,18,21,24,27,30,33,36,39,42, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, \ldots

The multiples of 7 are: 7,14,21,28,35,42, 7, 14, 21, 28, 35, 42, \ldots

The first common multiple is 21 21 .

Step 4: Multiply the sum of the common factors by the first common multiple.

Result=7×21=147 \text{Result} = 7 \times 21 = 147

4. Verify and Summarize

  • Common factors of 8 and 52: 1,2,4 1, 2, 4
  • Sum of common factors: 7 7
  • First common multiple of 3 and 7: 21 21
  • Final computation: 7×21=147 7 \times 21 = 147

Final Answer

The final result is 147 147 .

This problem has been solved

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