Prime Number Calculator
Last updated: June 3, 2022
What is a Prime Number
A prime number (or a prime) is a natural number greater than 1 that has only 2 divisors – 1 and the number itself
Is 2 a prime number?
Yes, the number 2 is prime. The number 2 is divisible only by 1 and the number itself.
Is 13 a prime number?
Yes, the number 13 is prime. The number 13 is divisible only by 1 and the number itself.
Is 17 a prime number?
Yes, the number 17 is prime. The number 17 is divisible only by 1 and the number itself.
Is 19 a prime number?
Yes, the number 19 is prime. The number 19 is divisible only by 1 and the number itself.
Is 9 a prime number?
No, the number 9 is not a prime number. Since 9 has more than two factors, i.e. 1, 3, 9, it is not a prime number. It is a composite number.
What is the smallest prime number?
2 is the smallest prime number.
Prime Numbers Example
An example of a prime number is 7. Its only divisors are 1 and 7.
However, 6 is not a prime number. It has 4 factors (1, 2, 3, 6). It is a composite number.
Examples of prime numbers: 2, 3, 5, 7, 11, 13, 17 and so on.
Examples of NOT prime (composite) numbers: 4, 6, 9, 12, 15, 18 and so on.
List of Prime Numbers from 1 to 100
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
Table of Prime Numbers from 1 to 1000
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 | 547 | 557 | 563 | 569 |
571 | 577 | 587 | 593 | 599 | 601 | 607 | 613 |
617 | 619 | 631 | 641 | 643 | 647 | 653 | 659 |
661 | 673 | 677 | 683 | 691 | 701 | 709 | 719 |
727 | 733 | 739 | 743 | 751 | 757 | 761 | 769 |
773 | 787 | 797 | 809 | 811 | 821 | 823 | 827 |
829 | 839 | 853 | 857 | 859 | 863 | 877 | 881 |
883 | 887 | 907 | 911 | 919 | 929 | 937 | 941 |
947 | 953 | 967 | 971 | 977 | 983 | 991 | 997 |
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