What is YAFU?

YAFU's goal is to factorize numbers up to 149 digit length which are needed to bring Aliquot Sequences to a size of at least 140. You can participate by downloading and running a free program on your computer.
The project runs without any funding and I'm happy about each donation.
The invitation code for creating new accounts is yafu

User of the Day

User profile Profile PavolR
\"Dve veci ma naplnaju obdivom: mravny zakon v nas a hviezdne nebo nado mnou.\" Immanuel Kant \"Two things fill the heart with renewed...


Aliquot sequence 2772150 has terminated!!!

16 Feb 2024, 18:36:25 UTC · Discuss

Aliquot sequence 2771604 has terminated!!!

15 Feb 2024, 19:53:58 UTC · Discuss

Aliquot sequence 106^33 has terminated!!!

11 Feb 2024, 9:42:24 UTC · Discuss

Aliquot sequence 2990736 has terminated!!!

17 Jan 2024, 19:35:27 UTC · Discuss

Aliquot sequence 2781584 has terminated!!!

31 Dec 2023, 9:13:33 UTC · Discuss

... more

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