20 of them.
The odd prime numbers from 1 to 50 are 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, and 47.
odd multiples of 7 are odd numbers.. like 7*1, 7*3,7*5..
250 of them.
There are 11 numbers between 1 and 130 that have an odd number of factors: 1,4,9,16,25,36,49,64,81,100,121.
In a street with 43 houses, the odd-numbered houses are those numbered 1, 3, 5, and so on, up to 43. The sequence of odd numbers can be represented as 1, 3, 5, ..., 43. Since there are 22 odd numbers from 1 to 43 (inclusive), there are 22 odd-numbered houses on that street.
20 of them.
There are several combinations of odd numbers that add up to 43. For example, 3 + 29 + 11 is equal to 43, so is 5 + 27 + 11, and many more. In fact, if you allow negative numbers, you have an infinite number of combinations.
26
There are 22 odd numbers between 1 and 45. These numbers are 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, and 45. Odd numbers in this range can be found by starting from 1 and adding 2 repeatedly.
There are 48/2 + 1 = 25 odd numbers in 1 to 49, inclusive.
1 +3 +5 = 9 7 + 13 + 23 = 43 111 +245 +789 = 1145 1145+43+9 = 1197 So the result will also be an odd number (while the sum of 2 odd numbers will always be even).
The odd prime numbers from 1 to 50 are 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, and 47.
21 13 43 31 41 23 that's all so 6
odd multiples of 7 are odd numbers.. like 7*1, 7*3,7*5..
201
71