An odd number is a number that's not divisible by 2; it's every other number starting at 1 (for our purposes. It can also go into negatives but you don't need to know that yet.) Some odd numbers are 1, 3, 5, 7, 9, 11, 13, 15, and so on, just keep adding 2.
Chat with our AI personalities
No. For example, 5+5=10.
Square numbers have odd numbers of factors. Examples: 4, 9, 16
Any product of two or more odd numbers that are larger than 1. For example, 33 = 3*11 is odd and composite.
While all prime numbers are odd (except 2), not all odd numbers are prime. 9 for example is an odd number, but you can get it by multiplying 3X3, so it is not prime. Odd numbers are numbers that are not divisible by 2. Prime numbers are numbers that cannot be generated by multiplying 2 whole numbers besides 1 and itself.
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.