 # Represent 6 with three Identical Digits and Arithmetic Operations

I was just going to say, when I was interrupted, that one of the many ways of classifying minds is under the heads of arithmetical and algebraical intellects. All economical and practical wisdom is an extension of the following arithmetical formula: 2 + 2 = 4. Every philosophical proposition has the more general character of the expression a + b = c. We are mere operatives, empirics, and egotists until we learn to think in letters instead of figures.

Oliver Wendell HOLMES

Glad you came by. I wanted to let you know I appreciate your spending time here at the blog very much. I do appreciate your taking time out of your busy schedule to check out Math1089!

6 is such a number which can be obtained using any number from 0 to 9 three times, with the help of some arithmetical operators. In this blogpost, our aim is to make the following equations correct by using mathematical operations.

1. 1  1  1 = 6
2. 2  2  2 = 6
3. 3  3  3 = 6
4. 4  4  4 = 6
5. 5  5  5 = 6
6. 6  6  6 = 6
7. 7  7  7 = 6
8. 8  8  8 = 6
9. 9  9  9 = 6

Here, arithmetical operations include addition, subtraction, multiplication, division, square root, cube root, factorial, fraction, exponentiation etc. Occasionally, integer floor function is used.

We know that 0! = 1 and 3! = 6. Therefore,

6 = (0! + 0! + 0!)!

Since cos (π/2) = 0, another representation may be

6 = [{cos (π/2)}! + {cos (π/2)}! + {cos (π/2)}!]!

Since sin (0) = 0, another representation may be

6 = [{sin (0)}! + {sin (0)}! + {sin (0)}!]!

Since 3! = 6, so

6 = (1 + 1 + 1)!

Since x0 = 1, another representation may be

6 = [x0 + x0 + x0]!

Since cos (0) = 1, another representation may be

6 = [{cos (0)}! + {cos (0)}! + {cos (0)}!]!

Since sin (π/2) = 1, another representation may be

6 = [{sin (π/2)}! + {sin (π/2)}! + {sin (π/2)}!]!

Normal representation is

6 = 2 + 2 + 2

Since 2! = 2, another representation may be

6 = 2! + 2! + 2!

Few representations are given below.

Here, we use square root concept. Few representations are given below.

Few representations are given below.

Few representations are given below.

Few representations are given below.

Integer floor function (or greatest integer function) gives us the largest integer less than or equal to the given number. Few representations are given below.

Few representations are given below.

Your suggestions are eagerly and respectfully welcome! See you soon with a new mathematics blog that you and I call Math1089 – Mathematics for All!“.

1. DEB JYOTI MITRA says:

Good One!

1. Math1089 says:

Thank you

2. Rusty Grizzard says:

Heya! I’m at work browsing your blog from my new iphone 3gs! Just wanted to say I love reading through your blog and look forward to all your posts! Carry on the fantastic work!

3. Bert Seabold says:

Good day! This post could not be written any better! Reading this post reminds me of my previous room mate! He always kept chatting about this. I will forward this write-up to him. Fairly certain he will have a good read. Thank you for sharing!