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Prime Numbers
A prime number is a number that has exactly two factors: 1 and itself. All whole numbers greater than 1 are either prime numbers or can be written as the product of prime numbers. There are an infinite number of prime numbers, but they occur less frequently among larger numbers. Prime numbers are important in cryptography and number theory.
30,833 Questions
Chose the number 2 prime or composite?
2 is a prime number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
Is 457 a prime number or a composite number?
457 is prime. It is only evenly divisible by itself and one.
Is 10 prim or composite and why?
composite because it has more than 2 factors and it's factors arent 1 and it's self
What are the prime numbers from 2-400?
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.
What are the factors and prime factors of 9865?
The factors of 9865 are: 1, 5, 1973, and 9865.
The prime factors of 9865 are: 5 and 1973.
What is the prime factorization tree of 2156?
The PF factorization of 2156 is: 2 x 2 x 7 x 7 x 11
2156
1078,2
539,2,2
77,7,2,2
11,7,7,2,2
What are the factors and prime factors of 981?
The factors of 981 are: 1, 3, 9, 109, 327, and 981.
The prime factors of 981 are: 3 and 109.
Is 34 prime or composite or neither?
34 is a composite number because it has 4 factors: 1, 2, 17, and 34.
Which of the flollowing groups of numbers are all prime numbers?
Asking a multiple-choice question without providing the choices doesn't really seem fair.
Is 142 a prime or acomposite number?
142 is composite. All whole numbers ending in two are composite except the number two itself, which is prime.
