# Questions on Algebra: Divisibility and Prime Numbers answered by real tutors!

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 Algebra: Divisibility and Prime Numbers Solvers Lessons Answers archive Quiz In Depth

 Question 263169: what is the function form of 5a^2 - 2ab -16b^2 Click here to see answer by palanisamy(496)

 Question 263173: what is the factored form of 10t^2 - 13t -3 Click here to see answer by drk(1908)
 Question 263173: what is the factored form of 10t^2 - 13t -3 Click here to see answer by stanbon(57290)

 Question 263176: what is the factored form 10t^2 - 43t + 12 Click here to see answer by drk(1908)

 Question 263180: what is the factoring form of 100t^2 - 9 Click here to see answer by drk(1908)

 Question 263157: what is the factored form of 81c^2 + 18c + 1 Click here to see answer by palanisamy(496)

 Question 263182: what is the function form of 100t^2 - 9 Click here to see answer by palanisamy(496)

 Question 263190: 2w^2 + 11w - 30 what is the factored form Click here to see answer by jim_thompson5910(28548)

 Question 263196: what is the factored form of 4w^2 - 225 Click here to see answer by jim_thompson5910(28548)

 Question 263198: what is the factor form of 2w^2 + 11W - 30 Click here to see answer by mananth(12270)

 Question 263199: what is the factored form of 4w^ - 60w + 225 Click here to see answer by Alan3354(30993)

 Question 264910: show 2 to get the prime factorization of 925 Click here to see answer by checkley77(12569)

 Question 265049: Fiona wants to buy a new house but she doesn't want a house with the numbers that are divisable by 3 or 5. If all the houses numbered between 100 and 150 inclusive are for sale how many houses can she choose from? Click here to see answer by josmiceli(9668)

 Question 265222: This is pretty easy, but I am drawing a blank: How do you divide 962 by 12? (I am unsure how to handle the remainder.) If I use the calculator, the answer is 80.1, but if I do it on paper, I cannot get the answer to correspond. Thanks... Click here to see answer by Alan3354(30993)

 Question 265387: Will n! +2, n! +3,..., n! +n for n>=2 always be a sequence of n-1 composite numbers? Why? Click here to see answer by jim_thompson5910(28548)

 Question 265421: What is the product of the smallest prime number that is greater than 50 and the greatest prime number that is less than 50? Click here to see answer by Edwin McCravy(8904)

 Question 265550: i need to know how do you write 13.5 and 14.06 Click here to see answer by Alan3354(30993)

 Question 265670: What is the name for the set of numbers that doesn't repeat and doesn't stop dividing? Click here to see answer by stanbon(57290)
 Question 265670: What is the name for the set of numbers that doesn't repeat and doesn't stop dividing? Click here to see answer by solver91311(16877)

 Question 268159: 343 is divisible by what number, without there being any remainders? Click here to see answer by drk(1908)
 Question 268159: 343 is divisible by what number, without there being any remainders? Click here to see answer by Alan3354(30993)

 Question 268303: Solve using the principle of zero product (y - 7)(4y + 12)(y + 13) = 0 Click here to see answer by jim_thompson5910(28548)

 Question 268466: A positive five –digit integer is in the form ab,cba; where a, b and c are each distinct digits what is the greatest possible value of ab,cba that is divisible by 11. Click here to see answer by CharlesG2(828)

 Question 268718: a group of children walk to a corner store and buy cans of soda for a total of \$3.36 and candy bars for a total of \$2.45. Each child has one can of soda and one candy bar. How many children were in the group> What is the cost of one can of soda nd one cany bar? Click here to see answer by ankor@dixie-net.com(15647)

 Question 271030: How do you write 5 1/3 divided by 2 2/5 in simplest form? Show your work. Click here to see answer by JBarnum(2044)

 Question 271977: Find the prime-factored form of the following number. 36 please show me how to do this one. Click here to see answer by dabanfield(803)

 Question 273193: If the sum of all the positive divisors of an integer n is equal to 2n, then n is called a perfect number. Which of the following is a perfect number? (A) 4 (B) 8 (C) 12 (D) 24 (E) 28 Click here to see answer by J2R2R(94)

 Question 273720: What is the gcf of 24 and 441 Click here to see answer by CharlesG2(828)
 Question 273720: What is the gcf of 24 and 441 Click here to see answer by solver91311(16877)

 Question 274568: If p and r are prime numbers, which of the following must also be prime? A p+r b pr+1 c p^2 + r^2 d none of above Click here to see answer by checkley77(12569)

 Question 274650: What is the smallest postive integer that is divisible by itself, 1, and eight other postive integers? A) 30 B) 48 C) 78 D) 169 Click here to see answer by JBarnum(2044)

 Question 274835: If n = pqr, where p, q, and r are three different positive prime numbers, how many different positive divisors does n have, including l and n? a) 3 b) 5 c) 6 d) 8 Click here to see answer by dabanfield(803)

 Question 275093: Suppose n is divisible by 8 but not by 3. Then which of the following CANNOT be an integer? A n/2 b n/4 c n d n/6 Click here to see answer by Edwin McCravy(8904)
 Question 275093: Suppose n is divisible by 8 but not by 3. Then which of the following CANNOT be an integer? A n/2 b n/4 c n d n/6 Click here to see answer by Theo(3458)

 Question 275854: I need some help with a proof. Let p & q be 2 consecutive primes. Then p+q=2n for some n. Is n always composite. I have some examples but not sure how to write proof. Examples: 11, 13 11+13=24 13,17 13+17=30 Thank you Click here to see answer by solver91311(16877)

 Question 276058: A man is 67 1/12 inches tall and his daughter is 60 8/9 inches tall. How much taller is the man? The man is __ inches taller. Simply your answer. Type an integer or a mixed number. Click here to see answer by richwmiller(9135)

 Question 276471: Graph the system of linear equations. Does the system have exactly one solution no solution or infinitely many solutions? Click here to see answer by checkley77(12569)

 Question 276632: the square of a whole number is between 300 and 400 the number must be between? Click here to see answer by stanbon(57290)
 Question 276632: the square of a whole number is between 300 and 400 the number must be between? Click here to see answer by solver91311(16877)

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