Factors of 1 to 100 are provided here. All the composite numbers have more than two factors and prime numbers have only two factors, i.e, 1 and the number itself. Prime factors of a number are the prime numbers that can divide the original number, uniformly.
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Table of Factors of 1 to 100
The factors of all the natural numbers from 1 to 100 are given below along with their prime factor form. Also, see, which of the natural numbers are prime numbers and which are composite numbers.
| Numbers | Factors | Prime Factors Form | Prime/Composite |
| 1 | 1 | – | Neither Prime nor composite |
| 2 | 1, 2 | 2 | Prime |
| 3 | 1, 3 | 3 | Prime |
| 4 | 1, 2, 4 | 2 x 2 | Composite |
| 5 | 1, 5 | 5 | Prime |
| 6 | 1, 2, 3, 6 | 2 x 3 | Composite |
| 7 | 1, 7 | 7 | Prime |
| 8 | 1, 2, 4, 8 | 2 x 2 x 2 | Composite |
| 9 | 1, 3, 9 | 3 x 3 | Composite |
| 10 | 1, 2, 5, 10 | 2 x 5 | Composite |
| 11 | 1, 11 | 11 | Prime |
| 12 | 1, 2, 3, 4, 6, 12 | 2 x 2 x 3 | Composite |
| 13 | 1, 13 | 13 | Prime |
| 14 | 1, 2, 7, 14 | 2 x 7 | Composite |
| 15 | 1, 3, 5, 15 | 3 x 5 | Composite |
| 16 | 1, 2, 4, 8, 16 | 2 x 2 x 2 x 2 | Composite |
| 17 | 1, 17 | 17 | Prime |
| 18 | 1, 2, 3, 6, 9, 18 | 2 x 3 x 3 | Composite |
| 19 | 1, 19 | 19 | Prime |
| 20 | 1, 2, 4, 5, 10, 20 | 2 x 2 x 5 | Composite |
| 21 | 1, 3, 7, 21 | 3 x 7 | Composite |
| 22 | 1, 2, 11, 22 | 2 x 11 | Composite |
| 23 | 1, 23 | 23 | Prime |
| 24 | 1, 2, 3, 4, 6, 8, 12, 24 | 2 x 2 x 2 x 3 | Composite |
| 25 | 1, 5, 25 | 5 x 5 | Composite |
| 26 | 1, 2, 13, 26 | 2 x 13 | Composite |
| 27 | 1, 3, 9, 27 | 3 x 3 x 3 | Composite |
| 28 | 1, 2, 4, 7, 14, 28 | 2 x 2 x 7 | Composite |
| 29 | 1, 29 | 29 | Prime |
| 30 | 1, 2, 3, 5, 6, 10, 15, 30 | 2 x 3 x 5 | Composite |
| 31 | 1, 31 | 31 | Prime |
| 32 | 1, 2, 4, 8, 16, 32 | 2 x 2 x 2 x 2 x 2 | Composite |
| 33 | 1, 3, 11, 33 | 3 x 11 | Composite |
| 34 | 1, 2, 17, 34 | 2 x 17 | Composite |
| 35 | 1, 5, 7, 35 | 5 x 7 | Composite |
| 36 | 1, 2, 3, 4, 6, 9, 12, 18, 36 | 2 x 2 x 3 x 3 | Composite |
| 37 | 1, 37 | 37 | Prime |
| 38 | 1, 2, 19, 38 | 2 x 19 | Composite |
| 39 | 1, 3, 13, 39 | 3 x 13 | Composite |
| 40 | 1, 2, 4, 5, 8, 10, 20, 40 | 2 x 2 x 2 x 5 | Composite |
| 41 | 1, 41 | 41 | Prime |
| 42 | 1, 2, 3, 6, 7, 14, 21, 42 | 2 x 3 x 7 | Composite |
| 43 | 1, 43 | 43 | Prime |
| 44 | 1, 2, 4, 11, 22, 44 | 2 x 2 x 11 | Composite |
| 45 | 1, 3, 5, 9, 15, 45 | 3 x 3 x 5 | Composite |
| 46 | 1, 2, 23, 46 | 2 x 23 | Composite |
| 47 | 1, 47 | 47 | Prime |
| 48 | 1, 2, 3, 4, 6, 8, 12, 16, 24, 48 | 2 x 2 x 2 x 2 x 3 | Composite |
| 49 | 1, 7, 49 | 7 x 7 | Composite |
| 50 | 1, 2, 5, 10, 25, 50 | 2 x 5 x 5 | Composite |
| 51 | 1, 3, 17, 51 | 3 x 17 | Composite |
| 52 | 1, 2, 4, 13, 26, 52 | 2 x 2 x 13 | Composite |
| 53 | 1, 53 | 53 | Prime |
| 54 | 1, 2, 3, 6, 9, 18, 27, 54 | 2 x 3 x 3 x 3 | Composite |
| 55 | 1, 5, 11, 55 | 5 x 11 | Composite |
| 56 | 1, 2, 4, 7, 8, 14, 28, 56 | 2 x 2 x 2 x 7 | Composite |
| 57 | 1, 3, 19, 57 | 3 x 19 | Composite |
| 58 | 1, 2, 29, 58 | 2 x 29 | Composite |
| 59 | 1, 59 | 59 | Prime |
| 60 | 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60 | 2 x 2 x 3 x 5 | Composite |
| 61 | 1, 61 | 61 | Prime |
| 62 | 1, 2, 31, 62 | 2 x 31 | Composite |
| 63 | 1, 3, 7, 9, 21, 63 | 3 x 3 x 7 | Composite |
| 64 | 1, 2, 4, 8, 16, 32, 64 | 2 x 2 x 2 x 2 x 2 x 2 | Composite |
| 65 | 1, 5, 13, 65 | 5 x 13 | Composite |
| 66 | 1, 2, 3, 6, 11, 22, 33, 66 | 2 x 3 x 11 | Composite |
| 67 | 1, 67 | 67 | Prime |
| 68 | 1, 2, 4, 17, 34, 68 | 2 x 2 x 17 | Composite |
| 69 | 1, 3, 23, 69 | 3 x 23 | Composite |
| 70 | 1, 2, 5, 7, 10, 14, 35, 70 | 2 x 5 x 7 | Composite |
| 71 | 1, 71 | 71 | Prime |
| 72 | 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72 | 2 x 2 x 2 x 3 x 3 | Composite |
| 73 | 1, 73 | 73 | Prime |
| 74 | 1, 2, 37, 74 | 2 x 37 | Composite |
| 75 | 1, 3, 5, 15, 25, 75 | 3 x 5 x 5 | Composite |
| 76 | 1, 2, 4, 19, 38, 76 | 2 x 2 x 19 | Composite |
| 77 | 1, 7, 11, 77 | 7 x 11 | Composite |
| 78 | 1, 2, 3, 6, 13, 26, 39, 78 | 2 x 3 x 13 | Composite |
| 79 | 1, 79 | 79 | Prime |
| 80 | 1, 2, 4, 5, 8, 10, 16, 20, 40, 80 | 2 x 2 x 2 x 2 x 5 | Composite |
| 81 | 1, 3, 9, 27, 81 | 3 x 3 x 3 x 3 | Composite |
| 82 | 1, 2, 41, 82 | 2 x 41 | Composite |
| 83 | 1, 83 | 83 | Prime |
| 84 | 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84 | 2 x 2 x 3 x 7 | Composite |
| 85 | 1, 5, 17, 85 | 5 x 17 | Composite |
| 86 | 1, 2, 43, 86 | 2 x 43 | Composite |
| 87 | 1, 3, 29, 87 | 3 x 29 | Composite |
| 88 | 1, 2, 4, 8, 11, 22, 44, 88 | 2 x 2 x 2 x 11 | Composite |
| 89 | 1, 89 | 89 | Prime |
| 90 | 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90 | 2 x 3 x 3 x 5 | Composite |
| 91 | 1, 7, 13, 91 | 7 x 13 | Composite |
| 92 | 1, 2, 4, 23, 46, 92 | 2 x 2 x 23 | Composite |
| 93 | 1, 3, 31, 93 | 3 x 31 | Composite |
| 94 | 1, 2, 47, 94 | 2 x 47 | Composite |
| 95 | 1, 5, 19, 95 | 5 x 19 | Composite |
| 96 | 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96 | 2 x 2 x 2 x 2 x 2 x 3 | Composite |
| 97 | 1, 97 | 97 | Prime |
| 98 | 1, 2, 7, 14, 49, 98 | 2 x 7 x 7 | Composite |
| 99 | 1, 3, 9, 11, 33, 99 | 3 x 3 x 11 | Composite |
| 100 | 1, 2, 4, 5, 10, 20, 25, 50, 100 | 2 x 2 x 5 x 5 | Composite |
Video Lesson on Prime Factors
Frequently Asked Questions on Factors of 1 to 100
Q1
How many factors does the number 100 have?
There are 9 factors of the number 100. They are 1, 2, 4, 5, 10, 20, 25, 50, 100.
Q2
How do we find the factors?
When we multiply two whole numbers to get another number, then the two numbers are the factors of the resulting number.
Q3
What are the factors of 200?
The factors of 200 are 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100 and 200.
Q4
What are the prime factors of 1000?
Prime Factorization of 1000: 1000 = 2 × 2 × 2 × 5 × 5 × 5. Therefore, 2 and 5 are the prime factors of 1000.
Q5
What is the GCF of 12 and 24?
Greatest common factor (GCF) of 12 and 24 is 12.
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