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1 Ans Armstrong Number - Palindrome Number - Fibonacci Number - Perfect Number definition example

Asked by Birds of the sky (2 Golds) Monday, 15 Jun 2020, 10:34 PM at (Education Engineering)

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Answer(s):

 1. Armstrong number:

1, 153, 307, 370, 371, 407


153 = 1^3 + 5^3+ 3^3

371 = 3^3 + 7^3 + 1^3



2. Palindrome number:

11, 22,.....121,....343,.... 1221 etc.

Input number and reverse number is same.



3. Perfect number:

6, 28, 496, 8128


6=1+2+3

28=1+2+4+7+14

[If the divisor's(except that number) summation makes that number]



4. Fibonacci number:

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55.....


Here, 

0+1=1

1+1=2

1+2=3

3+5=8

...........

Answered by Birds of the sky (2 Golds) Monday, 15 Jun 2020, 10:37 PM

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