It is: 1
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3
4
One.
Just 1.
7 is the perfect square for 1290
You need at least two numbers to find a GCF. If that's 12 and 8, the GCF is 4.
1290 doesn't have any factors that are perfect squares other than 1.
It is: 25
1,290 is not a perfect square. The approximate square root is ± 35.916569992136
1290 = 2 x 3 x 5 x 43
40% of 1290= 40% * 1290= 0.4 * 1290= 516
1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290.
1294
No. It would be estimated to 1300.