Q11:
How many different factors does the integer n have?
(1) n = a4b3, where a and b are different positive prime numbers.
(2) The only positive prime numbers that are factors of n are 5 and 7.
请问条件(2)为什么不充分呢?
举报
请好心人帮帮我~!!
for example:
n=5*7 4
n=(5^4)*(7) 10
n=(5^33)*(7^88) 3026
.
etc
can you count how many factors in N? can't!
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