Some people see the symbol known as the Star of David that is also called the Seal of Solomon and Star of Zion and they simply see a six pointed star or hexagram. Little are they aware of the secret alchemical and mathematical formulas that are hidden within it.

The Star of David mathematically represents the smallest star congruent prime containing all four prime digits. A congruent prime contains "shapes" of identical digits nested about the center when drawn in the form of symmetrical figures such as triangles and polygons. A symmetrical figure can be folded or divided into half so that the two halves match exactly.

The number 7, 777, 277, 227, 777, 772, 327, 777, 772, 222, 332, 222, 772, 333, 533, 327, 723, 555, 532, 772, 352, 532, 772, 355, 553, 277, 233, 353, 332, 772, 222, 332, 222, 777, 777, 232, 777, 777, 227, 727, 777 is the smallest star congruent prime containing all four prime digits, and no other numbers. Meaning that the 121 digit number can be arranged in the form of a six pointed star.(1)

Source: A Passion for Mathematics: Numbers, Puzzles, Madness, Religion, and the quest for reality By Clifford A. Pickover