Sum of prime numbers 
Compute the sum of all prime numbers in a stream of binary integers as fast as possible.
Input: 1 000 000 uint32 values in little-endian binary on STDIN (4 bytes each).
Output: The uint64 sum of all values that are prime, printed as a decimal string.
Source Code
Source code access is restricted. Log in to request access.
Challenge History
No challenges yet.
Run Statistics
| # | Date | Score | Wall Time | CPU User | CPU System | Memory | Error | |
|---|---|---|---|---|---|---|---|---|
| 1 | Mar 7, 2026 20:50 | 3,070 | 15,326,713 | 2,702,000 | 0 | 2,433,024 | ||
| 2 | Mar 7, 2026 20:49 | 3,093 | 18,521,438 | 2,722,000 | 0 | 2,424,832 | ||
| 3 | Feb 25, 2026 03:21 | 3,093 | 15,338,310 | 2,722,000 | 0 | 2,428,928 | ||
| 4 | Mar 7, 2026 20:49 | 3,094 | 28,436,789 | 2,723,000 | 0 | 2,416,640 | ||
| 5 | Feb 25, 2026 03:21 | 3,097 | 21,674,113 | 2,725,000 | 0 | 2,433,024 | ||
| 6 | Feb 26, 2026 03:59 | 3,105 | 23,148,364 | 2,732,000 | 0 | 2,424,832 | ||
| 7 | Feb 28, 2026 01:36 | 3,107 | 16,770,342 | 2,734,000 | 0 | 2,428,928 | ||
| 8 | Feb 28, 2026 01:35 | 3,108 | 24,732,856 | 2,735,000 | 0 | 2,420,736 | ||
| 9 | Feb 25, 2026 03:17 | 3,108 | 19,926,571 | 2,735,000 | 0 | 2,424,832 | ||
| 10 | Feb 26, 2026 03:23 | 3,113 | 19,812,848 | 2,739,000 | 0 | 2,420,736 | ||
| 11 | Feb 25, 2026 03:21 | 3,114 | 16,615,640 | 2,740,000 | 0 | 2,416,640 | ||
| 12 | Feb 25, 2026 03:16 | 3,116 | 20,049,348 | 2,742,000 | 0 | 2,412,544 | ||
| 13 | Mar 7, 2026 20:49 | 3,124 | 23,211,791 | 2,749,000 | 0 | 2,420,736 | ||
| 14 | Feb 26, 2026 03:52 | 3,130 | 18,380,455 | 2,754,000 | 0 | 2,424,832 | ||
| 15 | Feb 25, 2026 03:19 | 3,131 | 18,415,004 | 2,755,000 | 0 | 2,424,832 | ||
| 16 | Feb 28, 2026 01:35 | 3,138 | 20,114,275 | 2,761,000 | 0 | 2,424,832 | ||
| 17 | Feb 26, 2026 03:54 | 3,138 | 17,742,408 | 2,761,000 | 0 | 2,424,832 | ||
| 18 | Feb 28, 2026 01:35 | 3,142 | 18,614,391 | 2,765,000 | 0 | 2,420,736 | ||
| 19 | Feb 26, 2026 03:23 | 3,147 | 19,827,323 | 2,769,000 | 0 | 2,424,832 | ||
| 20 | Feb 26, 2026 03:54 | 3,148 | 21,944,938 | 2,770,000 | 0 | 2,420,736 | ||
| 21 | Feb 28, 2026 01:33 | 3,150 | 18,895,481 | 2,772,000 | 0 | 2,420,736 | ||
| 22 | Feb 26, 2026 03:52 | 3,151 | 25,042,293 | 2,773,000 | 0 | 2,424,832 | ||
| 23 | Feb 28, 2026 01:35 | 3,152 | 21,452,280 | 2,774,000 | 0 | 2,416,640 | ||
| 24 | Feb 26, 2026 03:52 | 3,153 | 18,126,110 | 2,775,000 | 0 | 2,412,544 | ||
| 25 | Feb 28, 2026 01:33 | 3,156 | 20,881,840 | 2,777,000 | 0 | 2,424,832 | ||
| 26 | Feb 26, 2026 03:59 | 3,160 | 19,411,393 | 2,781,000 | 0 | 2,424,832 | ||
| 27 | Feb 26, 2026 03:23 | 3,176 | 23,699,834 | 2,795,000 | 0 | 2,277,376 | ||
| 28 | Feb 28, 2026 01:33 | 3,180 | 17,795,866 | 2,798,000 | 0 | 2,277,376 | ||
| 29 | Mar 7, 2026 20:49 | 3,188 | 21,421,598 | 2,805,000 | 0 | 2,527,232 | ||
| 30 | Feb 28, 2026 01:33 | 3,193 | 16,430,702 | 2,810,000 | 0 | 2,531,328 | ||
| 31 | Feb 25, 2026 03:19 | 3,270 | 17,533,050 | 2,878,000 | 0 | 2,437,120 | ||
| 32 | Mar 7, 2026 20:50 | 3,273 | 18,299,122 | 1,920,000 | 960,000 | 2,269,184 | ||
| 33 | Feb 26, 2026 03:54 | 3,274 | 19,142,085 | 1,921,000 | 960,000 | 2,277,376 | ||
| 34 | Feb 28, 2026 01:36 | 3,305 | 19,312,521 | 1,454,000 | 1,454,000 | 2,424,832 | ||
| 35 | Feb 25, 2026 03:19 | 3,310 | 20,260,782 | 1,942,000 | 971,000 | 2,420,736 | ||
| 36 | Feb 26, 2026 03:54 | 3,311 | 22,628,974 | 1,943,000 | 971,000 | 2,510,848 | ||
| 37 | Feb 25, 2026 03:17 | 3,311 | 23,809,371 | 1,943,000 | 971,000 | 2,416,640 | ||
| 38 | Feb 26, 2026 03:56 | 3,311 | 16,306,712 | 2,914,000 | 0 | 2,428,928 | ||
| 39 | Feb 26, 2026 03:59 | 3,311 | 18,927,723 | 2,914,000 | 0 | 2,433,024 | ||
| 40 | Feb 28, 2026 01:36 | 3,311 | 23,625,662 | 1,943,000 | 971,000 | 2,523,136 | ||
| 41 | Feb 28, 2026 01:35 | 3,314 | 21,818,007 | 1,944,000 | 972,000 | 2,424,832 | ||
| 42 | Feb 25, 2026 03:19 | 3,315 | 16,686,127 | 2,917,000 | 0 | 2,510,848 | ||
| 43 | Feb 25, 2026 03:17 | 3,316 | 19,777,819 | 2,918,000 | 0 | 2,428,928 | ||
| 44 | Feb 26, 2026 03:59 | 3,317 | 20,209,225 | 1,946,000 | 973,000 | 2,424,832 | ||
| 45 | Feb 26, 2026 03:56 | 3,317 | 22,232,475 | 1,946,000 | 973,000 | 2,420,736 | ||
| 46 | Feb 26, 2026 03:56 | 3,318 | 20,254,707 | 2,920,000 | 0 | 2,420,736 | ||
| 47 | Feb 26, 2026 03:23 | 3,318 | 24,969,380 | 1,947,000 | 973,000 | 2,510,848 | ||
| 48 | Feb 28, 2026 01:34 | 3,322 | 20,542,362 | 1,949,000 | 974,000 | 2,420,736 | ||
| 49 | Mar 7, 2026 20:50 | 3,322 | 17,951,811 | 1,949,000 | 974,000 | 2,420,736 | ||
| 50 | Feb 28, 2026 01:34 | 3,323 | 23,744,547 | 2,924,000 | 0 | 2,420,736 | ||
| 51 | Feb 25, 2026 03:17 | 3,324 | 19,142,672 | 1,950,000 | 975,000 | 2,420,736 | ||
| 52 | Feb 25, 2026 03:17 | 3,324 | 18,453,245 | 1,950,000 | 975,000 | 2,433,024 | ||
| 53 | Feb 25, 2026 03:19 | 3,324 | 21,383,468 | 1,950,000 | 975,000 | 2,420,736 | ||
| 54 | Feb 28, 2026 01:36 | 3,324 | 16,642,074 | 1,950,000 | 975,000 | 2,420,736 | ||
| 55 | Feb 28, 2026 01:36 | 3,325 | 16,740,439 | 1,951,000 | 975,000 | 2,437,120 | ||
| 56 | Feb 25, 2026 03:16 | 3,325 | 26,521,948 | 1,951,000 | 975,000 | 2,273,280 | ||
| 57 | Feb 26, 2026 03:52 | 3,325 | 17,837,156 | 1,951,000 | 975,000 | 2,420,736 | ||
| 58 | Feb 25, 2026 03:16 | 3,331 | 19,406,455 | 1,954,000 | 977,000 | 2,424,832 | ||
| 59 | Feb 28, 2026 01:35 | 3,332 | 18,855,596 | 1,955,000 | 977,000 | 2,420,736 | ||
| 60 | Feb 28, 2026 01:33 | 3,334 | 17,626,377 | 1,467,000 | 1,467,000 | 2,428,928 | ||
| 61 | Feb 25, 2026 03:17 | 3,334 | 19,417,546 | 1,956,000 | 978,000 | 2,424,832 | ||
| 62 | Mar 7, 2026 20:49 | 3,334 | 27,969,756 | 2,934,000 | 0 | 2,420,736 | ||
| 63 | Feb 28, 2026 01:33 | 3,340 | 24,949,337 | 2,939,000 | 0 | 2,420,736 | ||
| 64 | Feb 26, 2026 03:59 | 3,341 | 20,281,893 | 1,960,000 | 980,000 | 2,420,736 | ||
| 65 | Mar 7, 2026 20:50 | 3,348 | 18,756,822 | 1,964,000 | 982,000 | 2,433,024 | ||
| 66 | Mar 7, 2026 20:49 | 3,550 | 23,466,219 | 2,083,000 | 1,041,000 | 2,269,184 | ||
| 67 | Mar 7, 2026 20:50 | 3,581 | 24,175,143 | 2,101,000 | 1,050,000 | 2,420,736 | ||
| 68 | Feb 26, 2026 03:52 | 3,601 | 17,651,385 | 2,113,000 | 1,056,000 | 2,424,832 | ||
| 69 | Feb 25, 2026 03:19 | 3,689 | 21,469,105 | 2,164,000 | 1,082,000 | 2,424,832 | ||
| 70 | Mar 7, 2026 20:50 | 3,697 | 20,811,911 | 2,169,000 | 1,084,000 | 2,424,832 | ||
| 71 | Feb 26, 2026 03:23 | 3,733 | 21,112,879 | 3,285,000 | 0 | 2,424,832 | ||
| 72 | Feb 28, 2026 01:34 | 3,744 | 17,000,972 | 3,295,000 | 0 | 2,277,376 | ||
| 73 | Feb 26, 2026 03:59 | 3,791 | 19,236,293 | 3,336,000 | 0 | 2,277,376 | ||
| 74 | Feb 28, 2026 01:36 | 3,813 | 23,926,310 | 3,355,000 | 0 | 2,277,376 | ||
| 75 | Feb 26, 2026 03:23 | 3,822 | 21,987,828 | 3,363,000 | 0 | 2,420,736 | ||
| 76 | Feb 26, 2026 03:54 | 3,841 | 22,593,879 | 3,380,000 | 0 | 2,424,832 | ||
| 77 | Feb 26, 2026 03:54 | 3,842 | 17,773,308 | 3,381,000 | 0 | 2,420,736 | ||
| 78 | Feb 26, 2026 03:52 | 3,897 | 24,883,586 | 3,429,000 | 0 | 2,424,832 |