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The product of two primes is 145 and the sum is 34. What is the larger of the two primes? Just answer, not use what you say
twenty-nine
A set of all primes less than 8?
Isn't it? Why?
Prime number (also called prime number) is a positive integer with and only 1 and its two divisors
The set of all primes less than 8 is {2,3,5,7}
1 is not a prime because 1 has only one divisor 1
4 is not a prime because there are three divisors 1, 2, 4
6 is not prime because there are four divisors 1, 2, 3, 6
How to express the set of primes less than 20?
{2,3,5,7,11,13,17,19}
A set of all prime numbers greater than 1 and less than 100?
Prime number means that there is no common divisor except 1 and itself (excluding 1), and 2 is the only prime even number
{2,3,5,7,11,13,17,19,23,31,41,43,47,53,57,59,61,67,71,73,79,83,87,89,97}
I don't know if it's wrong, you can see for yourself!
A set of all prime numbers greater than 1 and less than 100?
Y = {y belongs to integer, y is greater than 2 and less than root x}
X = {x belongs to integer, X is greater than 2 and less than 100, X cannot be divided by any number in Y set}
Note: some mathematical symbols can not be typed, please understand
Greater than 1, less than 100 prime number of the whole set, urgent!
Use description! Don't write me too many numbers
{x | x is prime, 1
Which primes are 28
2*2*7=28
Which primes can 5043 form
5043=3×41×41
Form 1, 2 and 3 to form one prime number, two prime numbers and three prime numbers
It's better to have all of them
3
thirteen
two hundred and thirty-one
The sum of the two primes is 30. What are the two primes
It could be
7 and 23
11 and 19
13 and 17
RELATED INFORMATIONS
- 1. In prime numbers within 30, plus 2 is still prime
- 2. Which two primes can 48 be divided into 48 ＝（ ）＋（ ）＝（ ）＋（ ）＝（ ）＋ （ ） ＝（ ）＋（ ) ==（ ）
- 3. There are three prime numbers. The sum of the three of them is 18. The product of the three of them is 78. What are they?
- 4. 21 / 17 × (3 / 8-0.75) + 151 / 12 ÷ 17 / 21 the known natural number a has only two divisors, then 5A has at most three divisors List the formulas
- 5. If a and B are prime numbers, then M = a * B must be a composite number Is that right
- 6. Why are prime numbers and composite numbers
- 7. 100 = () + () = () + () (prime number)
- 8. The common factors of 12 and 18 are (), the largest of which is (). 12 and () are mutually prime numbers (fill in one possibility) The greatest common factor of 6 and 8 is () The greatest common factor of 17 and 51 is () The greatest common factor of 17 and 23 is () If M = 2 * 2 * 3 * 3, n = 2 * 3 * 5, then the greatest common factor of M and N is () Two, three, four and five can form a pair of Coprime numbers If there is a two digit number whose two digits are combined and prime to each other, the minimum of the two digits is () It is known that M = 2 * 3 * A and N = 2 * 7 * A. if the greatest common factor of M and N is 10, then a = () Two numbers that become coprime () Use a number to divide 32 and 28 exactly. The maximum number is ()
- 9. If the least common multiple of two prime numbers is 21, then the two prime numbers are () and (), respectively
- 10. Point out which of the following groups of numbers are coprime (1) 3 and 4; (2) 4 and 6; (3) 6 and 1; (4) 15 and 16; (5) 18 and 20; (6) 19 and 24; (7) 24 and 25; (8) 49 and 50 Come on, I'll give you a reward!
- 11. Decomposition prime 7,11,13,17,19,23,
- 12. There are () different ways to write 40 as the sum of two primes A. 2B. 3C. 4D. 5
- 13. The difference between two prime numbers is 2, and the product is 35. What are these two prime numbers
- 14. It is known that the product of two inner terms in a proportion is the smallest prime number, one outer term is 6 / 7, and the other outer term is () How much?
- 15. The quotient of a number divided by 9 is the same as the remainder. The remainder is 15. The prime number is () fast! Today,
- 16. It is proved that if P is a prime greater than 5, then p 2 - 1 is a multiple of 24
- 17. The solution of the equation a (x + m) 2 + B = 0 of X is X1 = - 2, X2 = 1, (a, m, B are all constants, a ≠ 0), then the solution of the equation a (x + m + 2) 2 + B = 0 is______ ．
- 18. Mathematical proof problem: when n > 2, the nth power of any prime number cannot be decomposed into the sum of the same power (nth power) of two prime numbers Because a / (B + 2) = 1, B = A-2, why
- 19. Factorization: - 45x ^ 4Y ^ 2Z ^ 3 + 18x ^ 3Y ^ 2Z ^ 2 + 90x ^ 2Y ^ 2Z ^ 2
- 20. Given the function y = x ㏑ x, find the derivative of the function and the tangent equation of the function at point x = 1