What is the smallest multidigit prime, all its digits being distinct, such that its largest digit is the same as the largest digit of the sum of its digits?
(In reply to
computer solution by Charlie)
Your answer is correct.
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The unsolicited part - not quite:
379 19
397 19
467 17
647 17 674 MISSI NG
739 19 793 MISSING
829 19 892 MISSING
937 19 973 MISSING and so are many others...
1279 19
1297 19 U R INVITED TO DEBUG
1367 17
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MY REMARKS ABOVE (between the asterisk lines ) ARE WRONG -THEY IGNORE THE WORD "prime" - AN ESSENTIAL WORD IN THE PUZZLE.
PLEASE ACCEPT MY APOLOGIES - MISTAKES HAPPEN!
Edited on December 26, 2018, 9:29 pm