In study and work, we often encounter the sum of the first N prime numbers or the sum of prime numbers within a specified range. So the question is: what is a prime number? A prime number refers to a natural number that has no other factors except 1 and itself among the natural numbers greater than 1. Therefore, to calculate the sum of prime numbers, we must first judge whether it is a prime number. If it is a prime number, we can add it to the result. The steps seem simple, but many people will still be stumped. So, we have launched this free online sum of prime calculator to help you find the answer quickly.
Sum of prime calculator
For the above two cases, we designed two calculators to calculate the sum of prime numbers. One is the sum of first N prime numbers, which can be calculated directly by entering the value of N. The other is the sum of prime numbers in the range, enter the starting number and ending number, and then click calculate. Of course, if you do not enter the starting number, it will start from 2 by default. Because 1 is excluded from the definition of prime numbers.
List of top 100 prime numbers
2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 |
31 | 37 | 41 | 43 | 47 | 53 | 59 | 61 | 67 | 71 |
73 | 79 | 83 | 89 | 97 | 101 | 103 | 107 | 109 | 113 |
127 | 131 | 137 | 139 | 149 | 151 | 157 | 163 | 167 | 173 |
179 | 181 | 191 | 193 | 197 | 199 | 211 | 223 | 227 | 229 |
233 | 239 | 241 | 251 | 257 | 263 | 269 | 271 | 277 | 281 |
283 | 293 | 307 | 311 | 313 | 317 | 331 | 337 | 347 | 349 |
353 | 359 | 367 | 373 | 379 | 383 | 389 | 397 | 401 | 409 |
419 | 421 | 431 | 433 | 439 | 443 | 449 | 457 | 461 | 463 |
467 | 479 | 487 | 491 | 499 | 503 | 509 | 521 | 523 | 541 |
Among them, there are 25 prime numbers below 100, they are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89 and 97.
Solved examples using sum of prime calculator
What is the sum of first 25 prime numbers?
Enter the number 25 in the first N prime sum calculator, and click calculate button. As the picture shows, the sum of first 25 prime numbers is 1060.
The first 25 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89 and 97. They are all prime numbers less than 100. This means that the sum of prime numbers below 100 is 1060.
What is the sum of prime numbers between 20 and 100?
We will answer this through sum of prime calculator from A to B.
- First, enter 20 into the first input box.
- Second, enter 100 into the second input box.
- Third, click calculate button.
As you can see, the sum of prime numbers between 20 and 100 is 983. There are 17 prime numbers from 20 to 100, they are 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.
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