1,3,5,7,9,11,13,15,17,19,21,12,25,27,29
3 odd numbers can't be equal to 50 because: odd number + odd number = even number even number + odd number = odd number thus, adding 3 odd numbers will always give a sum which is an odd number too even number.
The density property does not hold for odd numbers in the same way it does for the set of all integers or real numbers. While there are infinitely many odd numbers, they are not densely packed within the integers; there are gaps between them (specifically, every even integer separates two odd integers). Thus, between any two odd numbers, there are even integers, indicating that odd numbers do not form a dense subset of the integers.
Yes. The square of an odd number is odd. So, if a, b and c are odd then a2, b2 and c2 are also all odd. But the sum of two odd numbers must be even. So for these to be Pythagorean, all three squares cannot be odd. Thus there are no odd triplets.
The difference between consecutive odd numbers is always 2, regardless of their starting point. For example, the odd numbers after 235 are 237, 239, 241, and so on. The difference between 237 and 239 is 2, as is the difference between 239 and 241. Thus, the difference remains constant at 2 for all consecutive odd numbers.
35
35
No. An odd plus an odd is even, and an even plus an odd is odd. Thus, you will always end up with an odd number if you add only three odd numbers together, and 50 is even.
Odd numbers are those divided by two with remainder. Thus, between 5 and 8 there is be only one odd number 7.
3 odd numbers can't be equal to 50 because: odd number + odd number = even number even number + odd number = odd number thus, adding 3 odd numbers will always give a sum which is an odd number too even number.
All even numbers except 2 are divisible and thus not prime. There is no such number for odd numbers, and there is in fact just one even prime and infinitely many odd primes.
Except for 2 all other prime numbers are odd. Otherwise, they would be divisible by 2 (and thus not a prime number). This does NOT mean that all odd numbers are prime, but that all prime numbers (aside from 2) are odd.
The only way to get an odd product when multiplying two whole numbers is when both of them are odd. Thus, in your example, the only way is by choosing the odd numbers 7 and 5, whose product is 35.
19
Yes. The square of an odd number is odd. So, if a, b and c are odd then a2, b2 and c2 are also all odd. But the sum of two odd numbers must be even. So for these to be Pythagorean, all three squares cannot be odd. Thus there are no odd triplets.
Other than the number 2, all other prime numbers are odd. As 469 is odd then it must be formed by the addition of an even number (2) and an odd number (467). The two prime numbers are thus 2 and 467.
Yes, the factors of all odd numbers are odd numbers.
The difference between consecutive odd numbers is always 2, regardless of their starting point. For example, the odd numbers after 235 are 237, 239, 241, and so on. The difference between 237 and 239 is 2, as is the difference between 239 and 241. Thus, the difference remains constant at 2 for all consecutive odd numbers.