What are the prime numbers between 1 and 120?
Prime numbers between 1 and 120 :
- 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, etc.
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How do you recognize a prime number?
A prime number is a number greater than 1 with only two factors – themselves and 1. A prime number cannot be divided by any other numbers without leaving a remainder. An example of a prime number is 13. It can only be divided by 1 and 13.
Why is 120 a prime number?
The number 120 is divisible by 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120. For a number to be classified as a prime number, it should have exactly two factors. Since 120 has more than two factors, i.e. 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, it is not a prime number.
How many prime numbers are there from 1 to 100 write all the numbers?
25 prime numbers
So, there are total 25 prime numbers up to 100. Therefore, the prime numbers 1 to 100 can be listed as, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.
What are all the odd numbers from 1 to 100?
The odd numbers from 1 to 100 are: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99.
What is the largest prime factor of 120?
So the prime factorization of 120 is 23 × 3 × 5 In fact, 2, 3 and 5 are the prime factors of 120. Also, we know that 1 is a factor of every number.
How many prime numbers are there between 1 and 100000?
Table 2. π(x) verse x/ln x
| x | π(x) | x/ln x |
|---|---|---|
| 1000 | 168 | 145 |
| 10000 | 1229 | 1086 |
| 100000 | 9592 | 8686 |
| 1000000 | 78498 | 72382 |