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In mathematics, an even number is an integer that is divisible by 2 without leaving a remainder. In the case of 21, when divided by 2, there is a remainder of 1, indicating that it is not evenly divisible by 2. Therefore, 21 is classified as an odd number.
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If you add 3 to an even number the sum would be odd or even?
Odd. Even + Even = Even Odd + Odd = Even Odd + Even = Even + Odd = Odd
Pick 6 digit from 9999 5555 3333 1111 and add them in order to get total 21?
This is impossible. 21 is an odd number and all these digits are odd. Whenever you add 6 odd numbers together, the answer is always even!
Does multiplying an odd number by an even number give an even answer?
odd * odd = odd answer even * even = even answer odd * even = even answer
When you add to even numbers is the answer always even?
Yes. Even + Even = Even, Odd + Odd = Even and Even + Odd or Odd + Even = Odd
What is even times even equal?
even times even = even odd times odd = odd even times odd = even
Is 21 a odd or a even?
It is odd.
Is 21 be a even or odd number?
It is odd.
Is 21 a even number or a odd number?
21 is an odd composite number
Is 21 even or odd number?
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 21 is an odd number.
Is 21 a even number?
an odd number
Is the square root of 21 even or odd?
The square root of 21 is not an integer. The concepts of "even" vs. "odd" is only defined for integers.
Why is odd times odd numbers always odd numbers?
In the same way that and odd plus and even is always odd. For example, 7*3 = (7+7) odd + odd = even , then add +7, apply rule that odd + even = odd and get that it equals 21.
What is the ratio of odd Fibonacci numbers to even Fibonacci numbers?
The ratio is 1:2. For every even number there are 2 odd numbers. Fibonacci Series: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ... which is even, odd, odd, even, odd, odd, even, odd, odd, even, ... the pattern continues
9999555533331111 in these any six numbers total is 21 what are those numbers?
5+5+5+5+1 That is only 5 numbers being added. There can be no answer for six numbers for the following reasons: The numbers are all odd. Two odd numbers make an even number. Two even numbers make an even number. 21 is odd. Take 6 odd numbers and add them up in pairs. Each pair of odd numbers gives an even number so there are 3 even numbers. Even + Even + Even = Even. So sum of any six odd numbers is even but 21 is not even.
Could 21 be a product of 2 even numbers and 1 odd?
no.
What odd number plus even number equals even number?
21+9=20
If you add 3 to an even number the sum would be odd or even?
Odd. Even + Even = Even Odd + Odd = Even Odd + Even = Even + Odd = Odd
