The year 2025.
25 is a fascinating number. 25 as a square number comes to mind first.
Wikipedia lists a ton of other trivia points about the number 25. One of them that stands out is:
There are 25 primes under 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.
Maybe in the year 2025, we can celebrate each of these 25 prime numbers throughout the first 100 days of the year.
| Prime # | Day of year in 2025 |
|---|---|
| 2 | January 2, 2025 |
| 3 | January 3, 2025 |
| 5 | January 5, 2025 |
| 7 | January 7, 2025 |
| 11 | January 11, 2025 |
| 13 | January 13, 2025 |
| 17 | January 17, 2025 |
| 19 | January 19, 2025 |
| 23 | January 23, 2025 |
| 29 | January 29, 2025 |
| 31 | January 31, 2025 |
| 37 | February 6, 2025 |
| 41 | February 10, 2025 |
| 43 | February 12, 2025 |
| 47 | February 16, 2025 |
| 53 | February 22, 2025 |
| 59 | February 28, 2025 |
| 61 | March 2, 2025 |
| 67 | March 8, 2025 |
| 71 | March 12, 2025 |
| 73 | March 14, 2025 |
| 79 | March 20, 2025 |
| 83 | March 24, 2025 |
| 89 | March 30, 2025 |
| 97 | April 7, 2025 |
If you’d like all these dates in a Google Calendar, here’s one: Prime days in 2025. I also went crazy for this calendar and added ALL the prime numbers under 366. So the prime celebration can go all year long.
At the very least, let’s mark April 7, 2025, on our calendars because that is the 97th day of the year, which is the 25th prime.