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Q: When you multiply an odd number by an odd number is the answer always odd?

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You will always get another odd number.

When you add them, you always get an even number; when you multiply them, the result is always odd.

if you multiply an even number by 5 then it will always end in 0 but if you multiply an odd number by 5 then it will always end in 5.

No, the product will always be even.

Multiply two odd numbers Add an even and an odd Subtract an odd and an even

its always an even number....im pretty sure.

An odd number times an odd number is an odd number no matter which 2 odds you multiply.

Two odd numbers always sum to an even number. Always. Two even numbers always sum to an even number, and an odd number and an even number always sum to an odd number.

No, always odd.

No, it always has an EVEN answer

Yes, it is.

Yes, it will always be the case. Two evens multipled will always give an even also, two odds multiplied will always give an odd result.

Any odd number multiply with itself, or any other odd number results in odd square number.

The result will always be an odd number.

Well, the question is why. The first number is "even" + 1. Multiply both of these by your odd number. Now the "even" times "odd" is even, because every "1" in the odd number becomes a "2". And then the remaining 1 times "odd" must be odd, which is an even +1. Add it all up and you get evens everywhere except that final "1". So the result is even + 1 which is odd. There is a quicker way if you know how to multiply bracketed terms: odd x odd = (even + 1)x(even +1)= even x even +even +even +1 = must be odd. ========================== You've just read a truly impressive answer to a question slightly different from the one that was asked. The part of the question that comes after "Why if ..." is a false statement. If you multiply odd number with another number, the result is odd number ONLY if the nother number is also odd number.

An even number.

No, always odd.

No, always odd.

No, their GCF is always odd.

Always odd.

If you multiply anything by 2 it always comes out even. So if people make 35 handshakes, we multiply it by 2 and we get 70 people. This will work with any different number of handshakes, odd or even.

Yes.

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

That's just as meaningless a question as asking "what is the biggest number?" Just as there is no biggest number (you can always get bigger numbers by adding 1), there is no odd number with the most factors. You could multiply any odd number by 3, and get an odd number with another factor of 3.

yes, the product of 2 odd numbers is always an odd number. Well, the question is why. The first number is "even" + 1. Multiply both of these by your odd number. Now the "even" times "odd" is even, because every "1" in the odd number becomes a "2". And then the remaining 1 times "odd" must be odd, which is an even +1. Add it all up and you get evens everywhere except that final "1". So the result is even + 1 which is odd. There is a quicker way if you know how to multiply bracketed terms: odd x odd = (even + 1)x(even +1)= even x even +even +even +1 = must be odd.