how many ways can you stack 77 books into equal piles?
the prime factors of 77 are 11 and 7. so you can either have 7 piles of 11 books or 11 piles of 7 books
5929
Thank you:)
also in this case 1 is a factor...so 77 piles of 1 book
but someone told me 5929?
where do u get that from?
5259 is what you get from the first google result, but it doesn't make sense
how many factors does 77 have? 1, 7, and 11. therefore there are 3 ways
it doesnt..so thats why i was asking.. Thank u again
wait where did u get the 11? from
when u multiply 7 and 11 it equals 77..? is that y
yes
7 piles of 11 books per pile ----------------------- Each stack of 11 books can be arranged in 11! ways and there are 7 stacks. That gives 7 (11!) ways to arrange the 77 books in seven stacks of 11 books each. 11 piles of 7 books ----------------- Each stack of 7 books can be arranged in 7! ways and there are 11 stacks. That gives 11(7!) ways to arrange the 77 book in eleven stacks of 7 books each. So, the answer to the original question is [7* (11!) + 11* (7!)] ways. The total is 279, 473, 040 ways.
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