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The factor pairs of 210 are (210,1)(105,2)(70,3)(42,5)(35,6)(30,7)(21,10)(15,14)

None of them add up to 23. If that was -210, you could use 30 and -7.

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βˆ™ 10y ago
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Q: What 2 numbers add up to 23 and multiply to make 210?
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