SOLUTION: How many prime numbers does Set S have? S = { 1, 24, 6, 7, 13, 161, 171 } a 3 b 4 c 5 d 6 e 7

Algebra.Com
Question 315457: How many prime numbers does Set S have? S = { 1, 24, 6, 7, 13, 161, 171 }
a 3 b 4 c 5 d 6 e 7

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
7, 13 are the only primes.
.
.
.
1 - not a prime number and not a composite number.
24 - 2*2*2*3
6 - 2*3
7 - 1*7
13 - 1*13
161 - 7*23
171 - 3*57

RELATED QUESTIONS

How many different prime numbers are factors of 1988? (Note: The number 1 is not a... (answered by nerdybill)
How many different prime numbers are factors of 1988? (Note: The number 1 is not a... (answered by ankor@dixie-net.com)
How many interior angles does a undecagon have? A. 7 B. 9 C. 11 D. 110 How... (answered by longjonsilver)
In how many ways can 25 be expressed as the sum of three prime numbers? A) 1 B) 3 C) 4 (answered by ikleyn,greenestamps)
In Mathylvania, license plates have two letters followed by four numbers. However, the... (answered by checkley79)
a b c d e f g h i j k l m n o p q r (answered by ewatrrr)
R(s) = x^3 - 2x^2 - 7 / x^6 - 2x^5 = 6x^2 - 4; how many vertical asymptotes are possible? (answered by nabla)
If S = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} and A = {0, 2, 4, 6, 8}, B = {1, 3, 5, 7, 9}, C = (answered by ikleyn,MathLover1)
Simplify the complex fraction completely: s^13/9 / s^6/12 A)3s^7/4 B)3s^19/4 C)4s^7/3... (answered by Edwin McCravy)