
約数と倍数,2進法
Quiz
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Medium
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14 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
次の自然数のうち,素数をすべて選びなさい。
14
17
51
67
123
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
20 を素因数分解しなさい。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
150 を素因数分解しなさい。
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2 つの自然数 12 と 90 の最大公約数を求めなさい。
2
3
6
180
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2 つの自然数 12 と 90 の最小公倍数を求めなさい。
2
3
6
180
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
たて 30 cm,よこ 75 cm の長方形の形をしたスペースを,
1 辺が a cm の同じ大きさの正方形のタイルですき間なく敷き詰める。
ただし,a は整数とする。
タイルをできるだけ大きくするには,a の値をいくらにすればいいか。
5
15
30
150
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