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Factors of numbers from 1 to 100. Learn how to find and calculate factor pairs of a number. All factors of 1-100 list. Use the factoring calculator for bigger numbers.

- Factors of 1 are:

1, 1 - Factors of 2 are:

1, 2 - Factors of 3 are:

1, 3 - Factors of 4 are:

1, 2, 4 - Factors of 5 are:

1, 5 - Factors of 6 are:

1, 2, 3, 6 - Factors of 7 are:

1, 7 - Factors of 8 are:

1, 2, 4, 8 - Factors of 9 are:

1, 3, 9 - Factors of 10 are:

1, 2, 5, 10 - Factors of 11 are:

1, 11 - Factors of 12 are:

1, 2, 3, 4, 6, 12 - Factors of 13 are:

1, 13 - Factors of 14 are:

1, 2, 7, 14 - Factors of 15 are:

1, 3, 5, 15 - Factors of 16 are:

1, 2, 4, 8, 16 - Factors of 17 are:

1, 17 - Factors of 18 are:

1, 2, 3, 6, 9, 18 - Factors of 19 are:

1, 19 - Factors of 20 are:

1, 2, 4, 5, 10, 20 - Factors of 21 are:

1, 3, 7, 21 - Factors of 22 are:

1, 2, 11, 22 - Factors of 23 are:

1, 23 - Factors of 24 are:

1, 2, 3, 4, 6, 8, 12, 24 - Factors of 25 are:

1, 5, 25 - Factors of 26 are:

1, 2, 13, 26 - Factors of 27 are:

1, 3, 9, 27 - Factors of 28 are:

1, 2, 4, 7, 14, 28 - Factors of 29 are:

1, 29 - Factors of 30 are:

1, 2, 3, 5, 6, 10, 15, 30 - Factors of 31 are:

1, 31 - Factors of 32 are:

1, 2, 4, 8, 16, 32 - Factors of 33 are:

1, 3, 11, 33 - Factors of 34 are:

1, 2, 17, 34 - Factors of 35 are:

1, 5, 7, 35 - Factors of 36 are:

1, 2, 3, 4, 6, 9, 12, 18, 36 - Factors of 37 are:

1, 37 - Factors of 38 are:

1, 2, 19, 38 - Factors of 39 are:

1, 3, 13, 39 - Factors of 40 are:

1, 2, 4, 5, 8, 10, 20, 40 - Factors of 41 are:

1, 41 - Factors of 42 are:

1, 2, 3, 6, 7, 14, 21, 42 - Factors of 43 are:

1, 43 - Factors of 44 are:

1, 2, 4, 11, 22, 44 - Factors of 45 are:

1, 3, 5, 9, 15, 45 - Factors of 46 are:

1, 2, 23, 46 - Factors of 47 are:

1, 47 - Factors of 48 are:

1, 2, 3, 4, 6, 8, 12, 16, 24, 48 - Factors of 49 are:

1, 7, 49 - Factors of 50 are:

1, 2, 5, 10, 25, 50 - Factors of 51 are:

1, 3, 17, 51 - Factors of 52 are:

1, 2, 4, 13, 26, 52 - Factors of 53 are:

1, 53 - Factors of 54 are:

1, 2, 3, 6, 9, 18, 27, 54 - Factors of 55 are:

1, 5, 11, 55 - Factors of 56 are:

1, 2, 4, 7, 8, 14, 28, 56 - Factors of 57 are:

1, 3, 19, 57 - Factors of 58 are:

1, 2, 29, 58 - Factors of 59 are:

1, 59 - Factors of 60 are:

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 - Factors of 61 are:

1, 61 - Factors of 62 are:

1, 2, 31, 62 - Factors of 63 are:

1, 3, 7, 9, 21, 63 - Factors of 64 are:

1, 2, 4, 8, 16, 32, 64 - Factors of 65 are:

1, 5, 13, 65 - Factors of 66 are:

1, 2, 3, 6, 11, 22, 33, 66 - Factors of 67 are:

1, 67 - Factors of 68 are:

1, 2, 4, 17, 34, 68 - Factors of 69 are:

1, 3, 23, 69 - Factors of 70 are:

1, 2, 5, 7, 10, 14, 35, 70 - Factors of 71 are:

1, 71 - Factors of 72 are:

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 - Factors of 73 are:

1, 73 - Factors of 74 are:

1, 2, 37, 74 - Factors of 75 are:

1, 3, 5, 15, 25, 75 - Factors of 76 are:

1, 2, 4, 19, 38, 76 - Factors of 77 are:

1, 7, 11, 77 - Factors of 78 are:

1, 2, 3, 6, 13, 26, 39, 78 - Factors of 79 are:

1, 79 - Factors of 80 are:

1, 2, 4, 5, 8, 10, 16, 20, 40, 80 - Factors of 81 are:

1, 3, 9, 27, 81 - Factors of 82 are:

1, 2, 41, 82 - Factors of 83 are:

1, 83 - Factors of 84 are:

1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 - Factors of 85 are:

1, 5, 17, 85 - Factors of 86 are:

1, 2, 43, 86 - Factors of 87 are:

1, 3, 29, 87 - Factors of 88 are:

1, 2, 4, 8, 11, 22, 44, 88 - Factors of 89 are:

1, 89 - Factors of 90 are:

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90 - Factors of 91 are:

1, 7, 13, 91 - Factors of 92 are:

1, 2, 4, 23, 46, 92 - Factors of 93 are:

1, 3, 31, 93 - Factors of 94 are:

1, 2, 47, 94 - Factors of 95 are:

1, 5, 19, 95 - Factors of 96 are:

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96 - Factors of 97 are:

1, 97 - Factors of 98 are:

1, 2, 7, 14, 49, 98 - Factors of 99 are:

1, 3, 9, 11, 33, 99 - Factors of 100 are:

1, 2, 4, 5, 10, 20, 25, 50, 100

In order to find the factors of a number simply used one of the divisibility or multiplication methods explained below.

### How to Factor A Number With Divisibility?

We want to find all of the whole numbers that your number is divisible by. Start dividing your number one after another with all numbers that are smaller than itself(Example: for 45 you would have to make half(23) the number of divisions). All numbers that leave no remainder after division are factors of the number!

This is a simple yet also a very time consuming method. Not practical to use when dealing with large numbers.

### How To Factor A Number With Multiplication?

To find all the factors of a given number you start by multiplying with 1* (Example 1*22=22) then with 2*x, 3*x, 4*x and so on. A pair of numbers that when multiplied together equals 22 can be called factors of 22(a factor pair of this integer).

This is also called the rainbow method, because you can write the smaller factors on the left and the bigger factors on the right side.

Gradually these factors will start to close in on each other. Once the gap between big and small factors is closed and they start to meet you know that all factors are found.

We want to find all of the whole numbers that your number is divisible by. Start dividing your number one after another with all numbers that are smaller than itself(Example: for 45 you would have to make half(23) the number of divisions). All numbers that leave no remainder after division are factors of the number!

This is a simple yet also a very time consuming method. Not practical to use when dealing with large numbers.

To find all the factors of a given number you start by multiplying with 1* (Example 1*22=22) then with 2*x, 3*x, 4*x and so on. A pair of numbers that when multiplied together equals 22 can be called factors of 22(a factor pair of this integer).

This is also called the rainbow method, because you can write the smaller factors on the left and the bigger factors on the right side.

Gradually these factors will start to close in on each other. Once the gap between big and small factors is closed and they start to meet you know that all factors are found.

Simplify math by using these six tips for finding factors the easy way.

**Tip 1:** If the last digit of a bigger number is 0, 2, 4, 6 or 8 then this means that the whole number is an even number. If it is an even number it is divisible by 2(making 2 a factor).

**Tip 2:** By multiplying the prime factors of a given number, we can find new factors.

**Tip 3:** If the sum of digits of a number is divisible by 3 then the number is also divisible by 3(making 3 a factor). Example: the digits of 24 are 2 and 4 so 2+4=6 and 6 is divisible by 3, meaning that 12 is divisible by 3). Same logic works also for number 9.

**Tip 4:** If the last two digits of a number are 00 then this number is divisible by 4(knowing multiples of 4 comes in handy when using this). Making 4 a factor.

**Tip 5:** If the last digit of a number is 0 or 5 then 5 is a factor of this number, because it is divisible.

**Tip 6:** All numbers that are divisible by both 2 and 3 are also divisible by 6. By using our third and sixth tip together you can now easily check if 6 is a factor in a big number.

Whole numbers that are divisible without leaving any fractional part or remainder are called factors of a number. A factor of a number is also called it's divisor.