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