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수학동아 - 폴리매스
함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
△π
2020.05.19 17:33
조회 813
어떤 사람의 생일을 숫자로 표현한다.(예:5월 19일 생일이면 0519)
이 사람의 생일로 숫자야구를 할 수 있다고 한다.(숫자야구는 중복이 있으면 안됩니다.)
이때, 이 사람의 생일로 가능한 숫자들을 모두 약수로 갖는 수가 있을 때, 이 수의 맨 뒤에서 연속되는 0의 갯수를 구하여라.(예:20300이면 2개, 54000000이면 6개)
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△π
Lv.9
2020.05.20 17:01
실제로 이 문제에서 숫자야구는 크게 중요하지 않습니다.
단지 이 수는 '중복된 숫자가 없는 수'라고 생각해 주면 됩니다.
그래도 더 알고 싶으시다면 나무위키의 숫자야구 항목을 참조해 주세요
좋아요0
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별소
Lv.4
2020.05.20 12:11
그 수들을 모두 약수로 갖는 수는 최소인거죠?
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△π
Lv.9
2020.05.20 16:58
좋아요0
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별소
Lv.4
2020.05.20 20:52
비밀댓글
확인요청중
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△π
Lv.9
2020.05.21 02:07
비밀댓글
비밀 댓글이 등록 되었습니다!
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파스칼
Lv.7
2020.07.05 06:17
비밀댓글
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