Happy 2025! | Olympiad Factorial Problem For New Year #math #2025

Happy New Year! To kick off the year I thought I'd give you all a problem based on the year 2025 and the number of months. Counting factors in factorials is a really important skill to master - and this problem is a variation on it. If you want another problem, can you tell me how many final zeros 2025! has?

If you like these videos, please comment, like, subscribe to help me grow the channel - and I'd love to see your own problems for me to solve based on the ideas in this video.

Quick counting questions like these comes up in maths challenges and competitions from all over the world like Math Olympiad, AMC8, AMC10, AMC12, UK Senior Maths Challenge, UK Intermediate Maths Challenge, Kangaroo, Gauss, Euler, Pascal and Ramanujan.

#maths #math #olympiad #matholympiad #amcmath #amc #amc10 #amc12 #amc8 #ukmt #ukmc #ukmathschallenge #ramanujan #gauss #euler #pascal #mathematics #mathcompetition #puzzle #logic #algebra

[haidara]

I have math question Mr:
List A= 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, 1....
List B= 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4....
Days= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11....

Let's say List A is the amount of juice i get each day
and let's say List B is the amount of biscuits i get each day.

How many days do i got to wait to get 5 juices and 1 biscuit in the same day? And if you can find a rule that we can always use please

[ghartas]

In reference to your Short video about Chat GPT, Python, and MANIM, can you do a longer video to explain in detail how you did that? I actually emailed the author of MANIM a few days ago about doing such a video. He's so busy that I don't expect a response. I'm in math education. Thanks.