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If its even its in the 2x table and if its odd its not in the 2x table,so that means its an odd 'cause its not in the 2x table.

The easiest way to test if a number is odd of even is to look at its last digit.

If it is divisible by 2, that is one of {0, 2, 4, 6, 8}, then the number is even;

If it is not divisible by 2, that is it is one of {1, 3, 5, 7, 9], then the number is odd.

The last digit of 15 is 5, so it is an odd number.

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15 is an odd number.

No, it is odd

No, because two odd numbers always add together to be an even number, and a even plus an odd number is an odd number, example: 3+1+11=An even number? 3+1=4 4+11=15 Is 15 even? No. 3+1+11= An odd number (15)

30 is the even number.

no. try 6 and 15. their GCF = 3 (odd)

odd * odd = odd answer even * even = even answer odd * even = even answer

it is even

Yes, 15 is an odd number.

"IT IS ALWAYS A ODD"

Odd

No. Sum of odd + odd = even Sum of odd + even = odd Sum of even + even = even

By addition, the sum of an odd number and an even number is always odd. (3 + 2 = 5, 7 + 10000 = 10007 ~ not evenly divisible by 2) By multiplication, an odd number times an even number is always even. (3 x 4 = 12 , 15 x 30 = 450 ~ evenly divisible by 2)

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