the smallest number that has 7 factors is................
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The smallest number that has 10 factors is...................
the smallest number that has 5 factors
The smallest number that has 5 factors?
the smallest number that has 5 odd factors is.............
Tìm số tự nhiên nhỏ nhất có 5 thừa số lẻ ?
The smallest number that has 5 factors.................
Tìm số tự nhiên nhỏ nhất có đúng 5 ước?
Gọi số tự nhiên đó là n
Phân tích n ra thừa số nguyên tố là n = ax.by.cz.... ( trong đó a; b; c là số nguyên tố; x; y; z; ..> 0)
=> Số các ước tự nhiên của n là (x + 1)(y + 1).(z+1)...= 5 = 1.5
+) Nếu n = ax => x+ 1 = 5 => x = 4
Vì nhỏ nhất nên a = 2 => n = 24 = 16
+) Nếu n = ax.by => (x + 1)(y + 1) = 1.5 => x + 1 = 1; y + 1 = 5 (có thể coi x < y)
=> x = 0; y = 4 (Loại vì x > 0)
Vậy số đó là 16
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Question 1:P is a prime number and a factor of 8. What is P?Answer: P Question 2:The greatest even factor of 62 is Question 3:The smallest multiple of 47 is Question 4:K is a prime number and a multiple of 43. What is K?Answer: K Question 5:The number 55 has factors.Question 6:In the following numbers, which has the most factors?Answer: Question 7:In the following figure, AN 5cm and AB 8cm. NB cm Question 8:Find the sum of all the factors of 19Answer: Question 9:Find such that .Answer: .Q...
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Question 1:
P is a prime number and a factor of 8. What is P?
Answer: P =
Question 2:
The greatest even factor of 62 is
Question 3:
The smallest multiple of 47 is
Question 4:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 5:
The number 55 has factors.
Question 6:
In the following numbers, which has the most factors?
Answer:
Question 7:
In the following figure, AN = 5cm and AB = 8cm. NB = cm
Question 8:
Find the sum of all the factors of 19
Answer:
Question 9:
Find such that .
Answer: .
Question 10:
Find n such that n and n + 1 are factors of 40
Answer: n =
The smallest number that has 10 factors.
Tìm số tự nhiên nhỏ nhất có 10 ước
Số nhỏ nhất có 10 ước là
2(5-1) . 3(2-1) = 16.3 = 48
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Question 1:K is a prime number and a multiple of 43. What is K?Answer: K Question 2:Which of following numbers is prime?Answer: Question 3:Which of following numbers is composite?Answer: .Question 4:The smallest odd multiple of 9 is Question 5:The number 55 has factors.Question 6:In the following figure, AN 5cm and AB 8cm. NB cm Question 7:Find the sum of all the factors of 19Answer: Question 8:In the following numbers, which has the most factors?Answer: Question 9:How many numbers from 1 t...
Đọc tiếp
Question 1:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 2:
Which of following numbers is prime?
Answer:
Question 3:
Which of following numbers is composite?
Answer: .
Question 4:
The smallest odd multiple of 9 is
Question 5:
The number 55 has factors.
Question 6:
In the following figure, AN = 5cm and AB = 8cm. NB = cm
Question 7:
Find the sum of all the factors of 19
Answer:
Question 8:
In the following numbers, which has the most factors?
Answer:
Question 9:
How many numbers from 1 to 500 are multiple of 6?
Answer:
Question 10:
The largest possible whole number that is less than 120 and has only 2 and 5 as prime factors is
What is the smallest 3 digit number with the factors the first 3 primes and the first 3 composite numbers?