Is the product of 5 and any number always odd?

Is the product of 5 and any number always odd?
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No. If the number by which you multiply 5 is even, the product will always end in "0" and will be even:5 x 2 = 105 x 8 = 405 x 18 = 90If the number by which you multiply 5 is odd, the product will always end in "5" and will be odd:5 x 3 = 155 x 9 = 455 x 31 = 155
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