Science Quiz / Two minute math: GCF

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

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

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