Q: What is the easy way to learn all the prime numbers between 1 to 100?

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2, 3Those two are consecutive, natural and prime numbers! It's as easy as one, two, three! (Pun intended)

Prime numbers have only 2 factors which are themselves and one whereas composite numbers have more than 2 factors

A prime number is only divisible by itself and the number one. Prime numbers have to be odd (except for the number 2, which is prime). So smaller numbers like 7 are usually pretty easy to determine if they are prime. But the higher the number value gets, the more complicated it is to determine. So people post a list of prime numbers on the internet so you'll know what the prime numbers are.

Check if a number is divisible by 2. Then check divisibility by all odd numbers, up to the square root of the number. If it isn't divisible by any of those, your number is a prime number. For higher numbers, this method may be very slow - but you asked for EASY methods, and the faster methods are certainly not easy.

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Study them.

Between YouTube and W3schools it is easy to learn but that's my personal opinion.

2, 3Those two are consecutive, natural and prime numbers! It's as easy as one, two, three! (Pun intended)

Prime numbers have only 2 factors which are themselves and one whereas composite numbers have more than 2 factors

That's easy, its 2, 3, 5, 7, and 11

Definition: Prime Number -- the only factors that can go into the number are 1 and itself. Their are simple tricks: numbers that end in 2, 4, 6, 8, 0, and 5 are not prime.My method just makes it easy to know which ones aren't prime.

No prime power exists since there are no duplicate prime numbers in the prime factorization.

A prime number is only divisible by itself and the number one. Prime numbers have to be odd (except for the number 2, which is prime). So smaller numbers like 7 are usually pretty easy to determine if they are prime. But the higher the number value gets, the more complicated it is to determine. So people post a list of prime numbers on the internet so you'll know what the prime numbers are.

Check if a number is divisible by 2. Then check divisibility by all odd numbers, up to the square root of the number. If it isn't divisible by any of those, your number is a prime number. For higher numbers, this method may be very slow - but you asked for EASY methods, and the faster methods are certainly not easy.

Prime numbers form the basis of most encryption algorithms, which are used to protect sensitive data such as credit card information, passwords, etc. Any natural number greater than one can be written as a product of prime numbers. The prime factorization is unambiguous, that is, for any natural number N, there is exactly one product of prime numbers. Multiplying prime factors is quick and easy. For example, the product of the two prime numbers 29 and 31 is 899. It is much harder to take 899, and find its prime factors. For very large numbers, such as 150-digit prime numbers, finding the prime factorisation is near impossible - and it is this difficulty that forms the basis of encryption algorithms.

It is easy to learn, if you really want to learn it

Start with the factors. Multiply combinations of three prime factors, then combinations of five, then seven, etc. All generated numbers will be guaranteed to have an odd number of prime factors.