Check whether 3 is a factor of 57
Calculating the Factors
A factor of a given number is a number that divides the given number exactly.
57=3×19
Since, 3 divides 57 exactly.
Hence, 3 is a factor of 57.
Check whether 3 is a factor of 50.
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Check whether 7+3x is a factor of 3x3+7x.