SOLUTION: How many one, two, and three-digit prime numbers can be formed using the digits 3,4,7, and 9?Digits may be used more than once.

Algebra ->  Sequences-and-series -> SOLUTION: How many one, two, and three-digit prime numbers can be formed using the digits 3,4,7, and 9?Digits may be used more than once.      Log On


   

Question 1104366: How many one, two, and three-digit prime numbers can be formed using the digits 3,4,7, and 9?Digits may be used more than once.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Find a cube root of i
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Just 1? There are 3.
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i --> 1cis(90)
root%283%2Ci%29+=+1cis%2830%29
= 1cis%28150%29
= 1cis%28270%29