Science Quiz / Minute Math: Highest Common Factor

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Quiz Updated Oct 21, 2014

Also try: Factor Frenzy
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Score 0/20 Timer 01:00
2 Plays Today
Numbers GCD / HCF % Correct
7, 147
98.6%
1, 3, 91
98.4%
12, 16, 324
96.5%
4, 6, 122
96.2%
5, 505
95.3%
9, 423
94.5%
24, 3612
90.7%
8, 20, 102
90.4%
6, 9, 153
85.2%
3, 17, 511
85.2%
Numbers GCD / HCF % Correct
15, 20, 305
83.3%
2, 5, 101
80.5%
3, 12, 723
73.4%
121, 132, 14311
73.3%
4, 1004
70.9%
100, 50, 50050
65.1%
13, 6513
59.4%
2, 62
43.8%
34, 15317
38.5%
76, 9519
18.7%
 
Number % Answered
20 (all)
18.1%
18-19
26.2%
16-17
19.8%
14-15
8.5%
12-13
7.4%
10-11
4.8%
8-9
5.4%
6-7
4.9%
4-5
1.5%
2-3
2.4%
1-1
1.1%

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