A good way to remember prime numbers from 1 to 100: Take any number. If it is only divisible by 1 and itself, then it is a prime number. If it is divisible by any other numbers, then it is not a Prime number. Example: 13. You can only get 13 by multiplying: 1 x 13, and 13 can only be divided by 13...13/13 = 1...or 1....13/1=13. So 13 IS a Prime number. Example 14. You can get 14 by multiplying: 1x14, 2x7, and you can divide 14 by 2 to get 7, or by 7 to get 2, so 14 is NOT a Prime number, since numbers other than itself and 1 are able to be divided into it to get whole numbers. This test will hold true for any prime number.
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There is no simple way. The difficulty wit prime numbers is that there is no pattern.
No, there are only 25 prime numbers less than 100.........remember that 1 is classed as unity and is not a prime number and 2 is the only even prime number.
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25 percent of the numbers from 1 to 100 are prime numbers.
The prime numbers of 100 are: 2, 2, 5 and 5