2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 193 197 199 211 223 227 229 233 239 241 251 257 263 269 271 277 281 283 293 307 311 313 317 331 337 347 349 353 359 367 373 379 383 389 397 401 409 419 421 431 433 439 443 449 457 461 463 467 479 487 491 499
The way to know the Prime Numbers is to find out if they can only Multiplied Once ,The way to know Composite Numbers is to find out if they can be Multiplied Twice
The same way as with smaller numbers, it may take longer. Just keep dividing by prime numbers until all the factors are prime.
'25' is odd, all right, but not prime. (It can be divided by 1, 5, and 25) By the way, prime numbers must be odd numbers. All even numbers can be divided by 2, at least, and are therefore not prime.
The same way as with smaller numbers, it may take longer. Just keep dividing by prime numbers until all the factors are prime.
it is a way of finding out all of the prime numbers that you have to multiply to equal the desired number.
A prime number is one that is only divisible by 1 and itself. Just work out if it divides into anything. To do this try dividing the number by all prime numbers under its half way value.
There is no simple way. The difficulty wit prime numbers is that there is no pattern.
study hard
Prime numbers are multiplied together in the same way as any integers may be multiplied together.
All numbers can be multiplied that way. A prime number is one that can only be divided by one and itself.
do the prime factorization of the 3 numbers. list the prime factors of all the 3 numbers. circle the factors that are common to the 3. multiply them. that number is the HCF
'Perdictible?' I think you mean 'Predictable', please check you spelling. The answer is NO!!!!! However, with the exception of '2', and even number, ALL larger prime numbers are 'Odd'. So all even numbers larger than '2' are compound numbers, and therefore not primes. All odd numbers ending in '5' are also compound numbers, divisible by '5' and therefore not prime numbers. This leaves all numbers ending in 1,3,7. & 9 as possible prime numbers. Here are the primes up to '100' ; not a prime. 2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,91,97. The differences between these primes are either 2,4,or 6. However, there is a lot of research going on to found to find a predictable formula for primes.