Two minute math: GCF

Random Science or Numbers Quiz

Can you name the greatest common factor for each set of numbers?

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NumbersGCF
Atomic number of Helium, Atomic number of Neon
60, 72
2^3, 3^2
432, 168
65, 39
24/2, 36/2
√(900), √(324)
117, 63
Years in a century, Days in a non-leap year
25, 7555
2010, (2)(3)(5)(67)
84, 27
72, 28
NumbersGCF
6, 999
242, 363
1 googol, 48
n, n+1
56, 63, 72
64, 4, 32
87, 58
1001, 44
38, 114
10^6, 5!
98, 70
90, 45

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Created May 31, 2010ReportNominate
Tags:math, Numbers, common, factor, gcf, greatest, minute, set