perplexus.info :: Numbers : Soft car for cats

Soft car for cats (Posted on 2019-05-22)

1. How many factors has 87,178,291,200 ?
2. What is the biggest number below 10^11 with only 3 factors>?
3. How are the above questions related?
4. ...and the title?

No Solution Yet Submitted by Ady TZIDON

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re: partway, I think.....HINT

Comment 2 of 2 |

(In reply to partway, I think by Charlie)

0. yes, factors=divisors

1,2,3. ....You have actually solved it- without mentioning explicitly (a+1)*(b+1)=3

4. anagram

Edited on May 22, 2019, 7:19 pm

Posted by Ady TZIDON on 2019-05-22 19:15:13

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