Is there an efficient way to work out how many factors a large number has?
Choose any 3 digits and make a 6 digit number by repeating the 3
digits in the same order (e.g. 594594). Explain why whatever digits
you choose the number will always be divisible by 7, 11 and 13.
Find the number which has 8 divisors, such that the product of the
divisors is 331776.
My name is Talei and I am a pupil from Poltair Community School
and Sports College in St Austell, in Cornwall.
The highest power of 11 which will divide exactly into 1000! is
I worked this out by:-
Well done Talei! Congratulations also to
Bethany, Emma and Monica of Hethersett High School and Soh Yong
Sheng, of Raffles Institution, Singapore.