Saturday, 23 April 2011

51 and 153 - Interesting Number Pattern ----> 19

Can you find similar pattern exhibited by these two numbers

153 = 51 * 3

a) Notice that 5, 1, 3 form the digits 153

b) Reverse of 51 is 15 which is 1* 5 * 3

c) Now 15 * 15 = 225, 3* 3 = 9. 225 + 9 = 234

d) Now concatenate 234, 09 (3 * 3 again) - You get 23409 which is 153 * 153 :)

e) Top it all 153 is the Armstrong number which we all know of 153 = 1 ^ 3 + 5 ^ 3 + 3 ^ 3

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