How many prime numbers?
Generate the first 45 numbers
Define a prime number:
A number with 2 factors: 1 and itself
Prime Number 1
2
0 + 2 = 2
Prime Number 2
3
2 + 3 = 5
Prime Number 3
5
5 + 5 = 10
Prime Number 4
7
10 + 7 = 17
Prime Number 5
11
17 + 11 = 28
Prime Number 6
13
28 + 13 = 41
Prime Number 7
17
41 + 17 = 58
Prime Number 8
19
58 + 19 = 77
Prime Number 9
23
77 + 23 = 100
Prime Number 10
29
100 + 29 = 129
Prime Number 11
31
129 + 31 = 160
Prime Number 12
37
160 + 37 = 197
Prime Number 13
41
197 + 41 = 238
Prime Number 14
43
238 + 43 = 281
Prime Number 15
47
281 + 47 = 328
Prime Number 16
53
328 + 53 = 381
Prime Number 17
59
381 + 59 = 440
Prime Number 18
61
440 + 61 = 501
Prime Number 19
67
501 + 67 = 568
Prime Number 20
71
568 + 71 = 639
Prime Number 21
73
639 + 73 = 712
Prime Number 22
79
712 + 79 = 791
Prime Number 23
83
791 + 83 = 874
Prime Number 24
89
874 + 89 = 963
Prime Number 25
97
963 + 97 = 1,060
Prime Number 26
101
1,060 + 101 = 1,161
Prime Number 27
103
1,161 + 103 = 1,264
Prime Number 28
107
1,264 + 107 = 1,371
Prime Number 29
109
1,371 + 109 = 1,480
Prime Number 30
113
1,480 + 113 = 1,593
Prime Number 31
127
1,593 + 127 = 1,720
Prime Number 32
131
1,720 + 131 = 1,851
Prime Number 33
137
1,851 + 137 = 1,988
Prime Number 34
139
1,988 + 139 = 2,127
Prime Number 35
149
2,127 + 149 = 2,276
Prime Number 36
151
2,276 + 151 = 2,427
Prime Number 37
157
2,427 + 157 = 2,584
Prime Number 38
163
2,584 + 163 = 2,747
Prime Number 39
167
2,747 + 167 = 2,914
Prime Number 40
173
2,914 + 173 = 3,087
Prime Number 41
179
3,087 + 179 = 3,266
Prime Number 42
181
3,266 + 181 = 3,447
Prime Number 43
191
3,447 + 191 = 3,638
Prime Number 44
193
3,638 + 193 = 3,831
Prime Number 45
197
3,831 + 197 = 4,028
Final Answer
What is the Answer?
How does the Prime Numbers Calculator work?
This calculator has 1 input.
What 1 formula is used for the Prime Numbers Calculator?
For more math formulas, check out our Formula Dossier
What 6 concepts are covered in the Prime Numbers Calculator?
- divisibility
- Determine factors (whole numbers) for a given number
- factor
- a divisor of an integer n, also called a factor of n, is an integer m that may be multiplied by some integer to produce n.
- number
- an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification. A quantity or amount.
- prime number
- a natural number greater than 1 that is not a product of two smaller natural numbers.
- prime numbers
- Positive numbers with no other factors but 1 and the number itself
- sum
- the total amount resulting from the addition of two or more numbers, amounts, or items
Example calculations for the Prime Numbers Calculator
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