47,2,39,46,121,113,191,191,167,171,13.
2006-07-29 20:45:18 · 13 answers · asked by busycatman 1 in Education & Reference ➔ Homework Help
The following five numbers in your series are prime (i.e. - ONLY divisible by one and itself):
2,
47,
113,
167, and
191 [Did you intend to type "191" twice?].
The following three numbers are NOT prime:
39 (because 3 x 13 = 39),
46 (because 2 x 23 = 46 [by the way, "2" is the ONLY even prime number], and
121 (because 11 x 11 = 121).
I hope this helps to answer your question adequately.
2006-07-29 20:48:01 · answer #1 · answered by G. Rex 3 · 1⤊ 0⤋
these are the primes under 200: 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
2006-07-29 20:50:57 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The following are prime numbers from your list:
47, 2, 113, 191, 167
A prime number can be divided, without a remainder, only by itself and by 1. For example, 17 can be divided only by 17 and by 1.
Some facts:
The only even prime number is 2. All other even numbers can be divided by 2.
If the sum of a number's digits is a multiple of 3, that number can be divided by 3.
No prime number greater than 5 ends in a 5. Any number greater than 5 that ends in a 5 can be divided by 5.
Zero and 1 are not considered prime numbers.
Except for 0 and 1, a number is either a prime number or a composite number. A composite number is defined as any number, greater than 1, that is not prime.
To prove whether a number is a prime number, first try dividing it by 2, and see if you get a whole number. If you do, it can't be a prime number. If you don't get a whole number, next try dividing it by prime numbers: 3, 5, 7, 11 (9 is divisible by 3) and so on, always dividing by a prime number.
2006-07-29 20:50:48 · answer #3 · answered by ♪ ♫ ☮ NYbron ☮ ♪ ♫ 6 · 0⤊ 0⤋
2
2006-07-29 20:50:22 · answer #4 · answered by isma 2 · 0⤊ 0⤋
11 x 11 =121. Not prime. 3 x 13 =39. Not prime. 2 x 23=46. Not prime.
2006-07-29 20:47:35 · answer #5 · answered by Anonymous · 0⤊ 0⤋
47 , 2, 113 , 191 , 167 r prime numbers
2006-07-29 20:51:50 · answer #6 · answered by Anonymous · 0⤊ 0⤋
For the future, if you search "list of prime numbers" you can get the first 1000 if you would need them. I just tried that myself and wikipedia's was the best.
2006-07-30 07:06:01 · answer #7 · answered by MollyMAM 6 · 0⤊ 0⤋
47
2006-07-29 20:49:44 · answer #8 · answered by Jimmy Pete 5 · 0⤊ 0⤋
prime number (or prime integer, often simply called a "prime" for short) is a positive integer that has no positive integer divisors other than 1 and itself. (More concisely, a prime number is a positive integer having exactly one positive divisor other than 1.)
47,2,113,167,191
2006-07-29 20:57:48 · answer #9 · answered by fzaa3's lover 4 · 0⤊ 0⤋
2, 113, 191, 167
2006-07-29 20:50:03 · answer #10 · answered by sarahdancer123 3 · 0⤊ 0⤋