Prime Numbers from 1-1000
What Are Prime Numbers ?
A prime number is a natural number greater than 1 that has exactly two distinct positive divisors:
- 1
- Itself
Key Characteristics of Prime Numbers:
- Only divisible by 1 and itself
- Cannot be formed by multiplying two smaller natural numbers
- The first prime number is 2 (which is also the only even prime number)
Not Prime (Composite) Numbers:
- These have more than two divisors
Ex:
- 4 - Divisors: 1, 2, 4 - Not Prime
- 6 - Divisors: 1, 2, 3, 6 - Not Prime
Prime Number Ex : 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, ...
Prime Numbers from 1-1000
- Total Prime numbers - 1 to 100 is 25 (Numbers are : 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)
- Total Prime numbers - 201-300 is 16 (Numbers are : 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293)
- Total Prime numbers - 301-400 is 16 (Numbers are : 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397)
- Total Prime numbers - 401-500 is 17 (Numbers are : 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499)
- Total Prime numbers - 501-600 is 14 (Numbers are : 503, 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, 599)
- Total Prime numbers - 601-700 is 16 (Numbers are : 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, 661, 673, 677, 683, 691)
- Total Prime numbers - 701-800 is 14 (Numbers are : 701, 709, 719, 727, 733, 739, 743, 751, 757, 761, 769, 773, 787, 797)
- Total Prime numbers - 801-900 is 15 (Numbers are : 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863, 877, 881, 883, 887)
- Total Prime numbers - 901-1000 is 14 (Numbers are : 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997)
Total Number of Prime Numbers (1 to 1000) = 168