Tutors Answer Your Questions about Divisibility and Prime Numbers (FREE)
Question 44027: It is a fact that if an N is a composite number, then there exists a prime
p is less than or equal to sqrt(N) which is a factor of N. Given this, how many primes must be checked to determine if 2003 is prime?
How did you come up with the answer?
Click here to see answer by fractalier(2101)   |
Question 44607: please help me solve this problem
factors the nos. a.231 and b.174 into prime factors
set a = (1, 6/5, -5/6. -4, -r, 0, square root of 18, 6.2.which of the nos in A are irrationals, integers, negative, positive rationals
Click here to see answer by stanbon(57377) |
Question 45328: THE PROLEM IS FIND TWO PRIME NUMBERS THAT IF MULTIPLIED,WORLD GENERATE A 400-DIGIT NUMBER.
NOW MY QUESTION IS HOW DO i COME UP WITH THAT ANSWER? WHAT ARE THE TWO PRIME NUMBERS? ALSO WHAT ARE ALL THE PRIME NUMBERS BETWEEN 2 AND 1000?
Click here to see answer by stanbon(57377) |
Question 49210: Tell whether each number is divisible by 2,3,4,5,6,9,10. Then classify the number as even or odd?
1.(1,000), 2.(6,598), 3.(399), 4.(27,453), 5.(33,324) and 6.(16,335)?
Click here to see answer by AnlytcPhil(1277)  |
Question 49530: How do you write the number 0.00283 in words and 17.39625 in words. I thought it would be two thousand eithty-three hundred thousandths --- and seventeen and thirty nine thousand six hundred twenty five hundred thousandths, but this doesn't look right. Please help. I understand the place value of the decimal,but don't know how to write it.
Click here to see answer by stanbon(57377) |
Question 49867: John constructed a dart board. The possible scores are 0, 1, 2 or 3. A score of 0 is obtained if the dart misses the board. Sally challenges John to a game consisting of each player throwing 6 darts at the board. The scores from the 6 throws are added. In how many ways can a total score of 15 or 16 be obtained?
Note: The total score obtained from 1+0+0+3+3+2 is considered different from the total score obtained from 0+0+1+3+3+2
Click here to see answer by AnlytcPhil(1277) |
Question 49986: This does not make sense to me. I am not getting the correct answer. I think I have the wrong formula.
Find the indicated root or state that the expression is not a real number:
a. 3√ 8
125
This is the cube root of 8/125.
b. -4√81
Click here to see answer by stanbon(57377) |
Question 50813: The question is asking "What is the largest three digit number that is divisible by both nine and seven?" At first I tried to multiply nine and seven and that is obviously not the correct answer because it is not a three digit number, other than this, I have no idea where to begin to find the solution to this problem? Do you have any idea? Thank you!
Click here to see answer by darq(90)  |
Question 53043: Two positive integers M and N are defined to be relatively prime if GCF(M, N) = 1. Which two pairs are numbers below are relatively prime?
a. 17 and 51
b. 6 and 25
c. 18 and 45
d. None of the above. In order for two numbers to be relatively prime, at least one of them has to be prime
Click here to see answer by consc198(59) |
Question 53043: Two positive integers M and N are defined to be relatively prime if GCF(M, N) = 1. Which two pairs are numbers below are relatively prime?
a. 17 and 51
b. 6 and 25
c. 18 and 45
d. None of the above. In order for two numbers to be relatively prime, at least one of them has to be prime
Click here to see answer by math_iz_hard(8) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440
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