There are four 3-digit natural numbers, each of them equals the sum of the cubes of its digits.
Three of them are:
153=1+125+27
370=27+343+0
407=64+0+343
Do you know what the fourth one is? It does not begin with 0, otherwise it isn't a 3-digit number.
Three of them are:
153=1+125+27
370=27+343+0
407=64+0+343
Do you know what the fourth one is? It does not begin with 0, otherwise it isn't a 3-digit number.
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1 comments:
Answer; 371 Since the second one has a 0 on the end,and since 1 is 13, just add 1 to both sides of it and get
371=27+343+1
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