Tag Archives: Digits 1 to 9

Digits from 1 to 9 : A^(B/C) + D^(E/F) + G^(H/I) is a palindrome

      Can you find other palindromes?   Paul found:                                       Advertisements

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Digits from 1 to 9 : A^(B/C) + D^(E/F) + G^(H/I) is a prime number

        Paul found:                                    

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Puzzle| Use All digits 1 to 9 to form distinct prime numbers

                                   

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Make 1111 using (+, -, *, /, ^) and digits 1-9 only once

  Make 1111 using (+, -, *, /) and exponentiation using only one digit from 1 to 9 each time. For example, (6 + 6^6)/(6 + 6*6)   =   1111 the digit 6 is repeated only six times.   … Continue reading

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All digits 1 to 9 only once | Magic square

                                                          a          b          c                                                        d          e           f                                                        g          h           i     … Continue reading

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All digits 1 to 9 only once | (a – b)^x + (c – d)^y + (e – f)^z = 0

                       (a – b)^x   +   (c – d)^y   +   (e – f)^z   =   0   a, b, c, x, d, y, e, f , z   represent all digits from   1   … Continue reading

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Product | Use the digits 1 to 9 exactly once

  Goal:   To use all digits from   1 to 9                        de                  a        b                      c fg                               hi where each of 9 the letters (a, b, c, d, e, f, g, h, i) represents … Continue reading

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Concatenation | N = M || M

Goal:   To assign a different digit from   1   to   9   to each of the letters in the following expression to produce concatenation of a number m with itself: that is,      N   =   … Continue reading

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Palindromes and Repdigits | using all digits 1-9 only once — Part 2

Goal:   To assign a different digit from   1   to   9   to each of the letters in the following expression to produce repdigits and palindromes:                                      (u – v) (r + s) * t   + … Continue reading

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Primes | using all digits 1-9 only once — Part 1

Goal:   To assign a different digit from   1   to   9   to each of the letters in the following expression to produce prime numbers:                                      (u – v) (r + s) * t   +   … Continue reading

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