The Armstrong numbers from 0 to 10000 are 1,153, 370, 371, 407!!
That's it Nothing more and nothing less ;)
Let k be the number of digits in a number, n, and d1,d2,d3,d4... be the digits of n.
Say n=370. Then k=3 and d1=3, d2=7 and d3=0.
Now 33+73+03=370. So 370 is an Armstrong number.
Armstrong iff n=d1k+d2k+d3k+d4k+...
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