Problem of The Week 2

Last 3 digit of factorials


What is the last three digits of 1! + 2! + 3! + 4! +. . .+ 999 999! + 1 000 000!  ?

Send your answer to with your name and school of affiliation. Names of those who sent correct answers will be posted in this page immediately after the answer has been reviewed. More categories will be added next week.

NOTE: Send answer only until November 31,2013

Check here for last week’s featured  problem

Correct answers were submitted by:

1. Vikram Waradpande. BUJS High School. India

2. Caesar Ian B. Pedro. University of the Philippines-Diliman

3. Arsh Singh. Works at India

4. Kennard Sychingping. De La Salle University

5. Riemann Soliven. Ateneo de Manila University, Quezon City

6. Jomari Tan. De La Salle University

7. John Rey Jimenez. Negros Occidental High School. Bacolod City

8. Renato Adsaca. Cavite State University

9. K Pavana Siddharta. IIT Madras

10. Jevie Omero. The sisters of Mary Boystown School

11.  Jerome Bechayda Laguna State Polytechnic University,San Pablo City Campus

12. Kenny Wong, Jurong Junior College

13. John Carlo E. Dacillo. BSCE. Polytechnic University of the Philippines

14. Jay Rald Qiuachon. University of Cebu-Main

15. Ruselle Guadalupe. University of the Philippines Diliman

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