0
1 + 2 + 3 + 5 + 7 + 9 =
... assuming you mean "positive numbers".
Also, the phrasing could be taken in 3 ways.
Prime AND odd numbers would be the intersect of 2 groups, being 1+3+5+7, which totals 16.
What is in both sets, but not counting the overlap twice, being 1+2+3+5+7+9, which is 27.
or finally, taking them both as independent sets of data, being 1+1+2+3+3+5+5+7+7+9, which is 43
Add your answer:
Earn +20 pts
Are odd numbers less than prime number?
No. Odd numbers can be greater than, smaller than, or equal to prime numbers.
How many odd prime numbers are less than 20?
Seven of them.
What are the odd prime numbers under 20?
The odd prime numbers less than 20 are 3, 5, 7, 11, 13, 17, and 19.
Why are square numbers one less than a prime number always even?
Prime numbers, except 2, are always odd (they would not be prime if they were even cos they would be divisible by 2.) 1 less than any odd number must be an even number.
Is a prime number odd or even?
All prime numbers other than 2 are odd numbers. 2 is the only even prime number.
Are odd numbers less than prime number?
No. Odd numbers can be greater than, smaller than, or equal to prime numbers.
What is the converse statement for the odd natural numbers less than 8 are prime?
If odd natural numbers are less than 8, then they are prime.
How many odd prime numbers are less than 20?
Seven of them.
What are the odd prime numbers under 20?
The odd prime numbers less than 20 are 3, 5, 7, 11, 13, 17, and 19.
What prime numbers are even and less than 100?
There is only one prime number which is even - that is 2 - and it also happens to be less than 100. All other prime numbers are odd.
Can all odd numbers greater than 1 but less than 10 are prime numbers?
No, says the number 9.
Are more number prime or odd?
There are more odd numbers than prime numbers.
What is an odd prime numbers less than 75 if the sum of the digit is 8?
17
Prime number that are less than 25?
Prime numbers are numbers that are divisible by themselves and 1. 1 itself is not regarded as a prime number. With the exception of 2, all prime numbers are odd numbers. Applying this gives the following prime numbers less than 25 :- 2,3,5,7,11,13,17,19 and 23.
Why are square numbers one less than a prime number always even?
Prime numbers, except 2, are always odd (they would not be prime if they were even cos they would be divisible by 2.) 1 less than any odd number must be an even number.
There are 25 prime numbers less than 100 is their sum even or odd?
Oh, what a happy little question! Let's take a look at those prime numbers. When we add them up, we find that their sum is actually even. Isn't that just a delightful surprise? Remember, in the world of numbers, there's always a little bit of magic waiting to be discovered.
What number less than 20 an odd number and has 2 different prime factors?
Well, darling, the number you're looking for is 15. It's less than 20, odd, and can be broken down into the prime factors 3 and 5. So, there you have it, a prime factor party with the number 15 strutting its stuff.
