Factorization Challenge: List All Factors of Number 14

Prime Factorization with Two-Digit Numbers

Write all the factors of the following number: 14 14

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Find all the prime factors of the number
00:03 The ones digit is 4, therefore 2 is definitely a prime factor
00:06 Divide by 2, and continue with the result to find the factors
00:09 And the result is a prime number, therefore it's a factor by itself
00:12 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Write all the factors of the following number: 14 14

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Step-by-step solution

To determine the factors of the number 14 14 , follow these steps:

  • Step 1: Understand that factors are numbers that divide 14 14 evenly. This means there is no remainder when 14 14 is divided by its factors.
  • Step 2: Consider 14 14 as a product of its prime factors. Start by dividing 14 14 by the smallest prime number 2 2 . Since 14÷2=7 14 \div 2 = 7 with no remainder, we find that 2 2 is a factor, and the quotient, 7 7 , is another factor.
  • Step 3: Verify that 7 7 is a prime number and cannot be divided evenly by any number other than itself and 1 1 .
  • Step 4: List the factors. Based on the fact that 14=2×7 14 = 2 \times 7 , the factors of 14 14 are 1,2,7, 1, 2, 7, and 14 14 .

The prime factors are those that occur as direct divisors in the prime factorization, which are 2 2 and 7 7 .

Final conclusion: The problem specifically asks for the prime factors of 14 14 , which are 2 2 and 7 7 .

Thus, the prime factors of 14 14 are 2,7 2, 7 .

3

Final Answer

2,7 2,7

Key Points to Remember

Essential concepts to master this topic
  • Definition: Factors divide a number evenly with zero remainder
  • Method: Divide 14 by 2 to get 7, so factors are 1, 2, 7, 14
  • Check: Verify each factor: 14 ÷ 2 = 7, 14 ÷ 7 = 2 ✓

Common Mistakes

Avoid these frequent errors
  • Confusing all factors with prime factors only
    Don't list only 2 and 7 when asked for all factors = missing answers! The question asks for ALL factors, not just prime factors. Always include 1 and the number itself as factors too.

Practice Quiz

Test your knowledge with interactive questions

Write all the factors of the following number: \( 9 \)

FAQ

Everything you need to know about this question

What's the difference between factors and prime factors?

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All factors of 14 are: 1, 2, 7, 14. Prime factors are only the prime numbers that divide 14: just 2 and 7. Always read the question carefully to see which one is asked for!

How do I find all factors systematically?

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Start with 1 and the number itself. Then test each number from 2 up to half the original number. For 14: test 2 (yes), 3 (no), 4 (no), 5 (no), 6 (no), 7 (yes).

Why is 1 always a factor?

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Every number divides evenly by 1 with no remainder. So 1 is always a factor of any positive integer, and the number itself is also always a factor.

Can negative numbers have factors?

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Yes! For example, -14 has factors: ±1, ±2, ±7, ±14. But typically in basic math, we only consider positive factors unless specified otherwise.

How do I know when I've found all factors?

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Once you've tested all numbers up to 14 \sqrt{14} (about 3.7), you've found all factor pairs. For 14: pairs are (1,14) and (2,7).

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