Prime Numbers Table
Interactive table of prime numbers from 2 to 1000. Visual grid with prime highlighting, range selection, and number checker with factorization.
Range:Total primes: 25
Prime Composite
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
How to Use the Prime Numbers Table
- Browse the reference table to find the values you need.
- Use search or scroll to locate specific entries.
- Click on a value to copy it or see more details.
- Use the table as a quick reference during calculations or study.
Schnellreferenz
| Von | Nach |
|---|---|
| 1 × 1 | 1 |
| 5 × 5 | 25 |
| 7 × 8 | 56 |
| 9 × 9 | 81 |
| 12 × 12 | 144 |
| 15 × 15 | 225 |
Anwendungsfälle
- •Quick lookup of values during math class or professional work.
- •Verifying calculations without needing a full scientific calculator.
- •Studying mathematical relationships, patterns, and properties.
- •Using as a handy reference during engineering or science tasks.
Formel
A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. The Sieve of Eratosthenes efficiently finds all primes up to a given limit.
Häufig gestellte Fragen
How many prime numbers are there between 1 and 1000?
There are 168 prime numbers between 1 and 1000. The primes thin out as numbers get larger, but there are infinitely many primes overall (proven by Euclid).
Is 1 a prime number?
No. By modern convention, 1 is neither prime nor composite. A prime must be greater than 1 and have exactly two distinct positive divisors.
What is the Sieve of Eratosthenes?
It is an ancient algorithm for finding primes. Starting from 2, mark all multiples of each prime as composite. The remaining unmarked numbers are prime. This table uses this algorithm.
What is prime factorization?
Every integer greater than 1 can be written as a unique product of prime numbers. For example, 60 = 2² × 3 × 5. Click any composite number in the grid to see its factorization.