Another number that provides some fascinating insights on how digits 2, 3, 7 combine and create magic
- 2187 is 3 ^ 7
- 3 x 7 is 21 which are the first two digits
- First digit (2) ^ 3 (sum of first 2 digits) is 3rd digit - 8
- First 2 digits (21) divided by sum of first 2 digits is 4th digit - 7
And for few more medium complex ones,
- 218 + 7 is 225
- Insert 0 as the 2nd digit makes it 2025 which is 45 ^ 2 and 45 in turn is 27 + 18 or 28 + 17 (sum of digits)
- Insert 0 as the 3rd digit makes it 2205 which is 441 x 5 (3 ^ 2 x 7 ^ 2 x (3+7)/2)
- 2187 is product of its own digits - 27 x 81
- 2187 can also be written as - ( (7 ^ 3) - (7+3) ^ 2 ) x 3 ^ 2
And best is reserved for the last
21 + 87 is 108 and 87 - 21 is 66. Multiplication of 108 x 66 gives 7128 which is an anagram of 2187
- 2187 is 3 ^ 7
- 3 x 7 is 21 which are the first two digits
- First digit (2) ^ 3 (sum of first 2 digits) is 3rd digit - 8
- First 2 digits (21) divided by sum of first 2 digits is 4th digit - 7
And for few more medium complex ones,
- 218 + 7 is 225
- Insert 0 as the 2nd digit makes it 2025 which is 45 ^ 2 and 45 in turn is 27 + 18 or 28 + 17 (sum of digits)
- Insert 0 as the 3rd digit makes it 2205 which is 441 x 5 (3 ^ 2 x 7 ^ 2 x (3+7)/2)
- 2187 is product of its own digits - 27 x 81
- 2187 can also be written as - ( (7 ^ 3) - (7+3) ^ 2 ) x 3 ^ 2
And best is reserved for the last
21 + 87 is 108 and 87 - 21 is 66. Multiplication of 108 x 66 gives 7128 which is an anagram of 2187
No comments:
Post a Comment