How to Find How Many Factors Are in a Number

Identify the number., Calculate the Prime Factorization of the number., Take all the exponents and add one to each of them., Multiply the modified exponents together., Prime Factorization - 225(29)(13)., Prime Factorization - 2(7901) Modify...

7 Steps 1 min read Medium

Step-by-Step Guide

  1. Step 1: Identify the number.

    Any number in the world, but it's best to start with the simpler ones.

    Take 72, for example, but the number could be denoted by a variable. , There are many methods of doing this, but usually, the simplest way is to make a factor tree.

    This works because according to number theory, every integer (except
    -1, 0, and 1) has a number of prime numbers that, when multiplied together, will equal the number.

    Remember that 0 and 1 are not prime numbers. 72 should be factorized into 2 and 36, 2, 6, and 6, and finally, 2, 2, 3, 2, 3, which equals 23*32. , In the example 23 and 32, the exponents are 3 and 2
    - adding one to each will make them 4 and
    3. , 4 x 3 =
    12.

    There are 12 factors for the number 72
    - 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and
    72. , Now, because x1 = x, 29, 13, and 5 all have exponents to the first power.

    Add exponents by one. 3, 2, 2,
    2.

    Multiply the modified exponents together.

    There are 24 factors of the number
    7540.
  2. Step 2: Calculate the Prime Factorization of the number.

    There are four factors of the number 15802
    - 1, 2, 7901,
    15802. 7901 is a prime number.
  3. Step 3: Take all the exponents and add one to each of them.

  4. Step 4: Multiply the modified exponents together.

  5. Step 5: Prime Factorization - 225(29)(13).

  6. Step 6: Prime Factorization - 2(7901) Modify exponents - 2

  7. Step 7: 2 Multiply.

Detailed Guide

Any number in the world, but it's best to start with the simpler ones.

Take 72, for example, but the number could be denoted by a variable. , There are many methods of doing this, but usually, the simplest way is to make a factor tree.

This works because according to number theory, every integer (except
-1, 0, and 1) has a number of prime numbers that, when multiplied together, will equal the number.

Remember that 0 and 1 are not prime numbers. 72 should be factorized into 2 and 36, 2, 6, and 6, and finally, 2, 2, 3, 2, 3, which equals 23*32. , In the example 23 and 32, the exponents are 3 and 2
- adding one to each will make them 4 and
3. , 4 x 3 =
12.

There are 12 factors for the number 72
- 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and
72. , Now, because x1 = x, 29, 13, and 5 all have exponents to the first power.

Add exponents by one. 3, 2, 2,
2.

Multiply the modified exponents together.

There are 24 factors of the number
7540.

There are four factors of the number 15802
- 1, 2, 7901,
15802. 7901 is a prime number.

About the Author

N

Natalie Green

Enthusiastic about teaching organization techniques through clear, step-by-step guides.

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