How many numbers from 1 to 500 are multiple of 6?
Question 1:
The smallest odd multiple of 9 is
Question 2:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 3:
How many prime numbers are less than 10?
Answer: There are numbers.
Question 4:
P is a prime number and a factor of 8. What is P?
Answer: P =
Question 5:
A prime number between 42 and 46 is
Question 6:
In the following numbers, which has the most factors?
Answer:
Question 7:
The number 55 has factors.
Question 8:
Find the sum of all the factors of 15
Answer:
Question 9:
How many times does the digit “0” appear in numbers from 1 to 1000?
Answer:
Question 10:
If m, n are consecutive odd numbers and is divisible by 3 and 5 then m =
In a number sequence : 1 , 1 , 2, 3 , 5 , 8 , 13 , 21 , ... , starting from the third number , each number is the sum of the two numbers that come just before it . How many even numbers are there among the first 1000 numbers in the number sequence ?
Question 1:
J is a factor and a multiple of 25. What is J?
Answer: J =
Question 2:
How many prime numbers are less than 10?
Answer: There are
numbers.
Question 3:
Which of following numbers is composite?
Answer:
.
Question 4:
P is a prime number and a factor of 8. What is P?
Answer: P =
Question 5:
Find the sum of all the factors of 15
Answer:
Question 6:
In the following figure, AN = 5cm and AB = 8cm. NB =
cm
Question 7:
A prime number between 42 and 46 is
Question 8:
Find the sum of all the factors of 19
Answer:
Question 9:
How many prime numbers have formed ?
Answer: There are
numbers
Question 10:
How many multiples of 3 less than 1000?
Answer:
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
Number 6 is written as sum of two positive integers in three different ways: $6=1+5=2+4=3+3.$ (order does NOT matter). That is, there are exactly three different pairs of positive integers that add to make six. How many pairs of positive integers that add to make 1000?
Question 1:
K is a prime number and a multiple of 43. What is K?
Answer: K =
Question 2:
How many prime numbers are less than 10?
Answer: There are numbers.
Question 3:
The smallest factor of 82 is
Question 4:
The smallest multiple of 47 is
Question 5:
In the following figure, RQ = 12cm and PR = 17cm. PQ = cm
Question 6:
In the following figure, AN = 5cm and AB = 8cm. NB = cm
Question 7:
A prime number between 42 and 46 is
Question 8:
Find the sum of all the factors of 19
Answer:
Question 9:
The sum of two of following numbers is divisible by 4 and 6.
What are the two numbers?
(Write numbers in order, beginning smaller and use “;”)
Answer:
Question 10:
How many prime numbers have formed ?
Answer: There are numbers
how many numbers between 1 and 100 are not divisible by 3
Câu 1: Given that is divisible by 9. What is the value of ?
Câu 2: How many elements of the set A are divisible by 9?
Câu 3:A is a set of multiples of 12 less than 12. How many elements does the set A have?
Câu 4:Find the remainder when is divided by 3.
Câu 5:Given that 511 is the sum of two prime numbers and , . What is the value of ?
Câu 6:Given that . Find the value of .
Câu 7:Given that . How many divisors does the number A have?
Câu 8:Find the natural number so that the product of and 5 is a prime number.
Câu 9:
Given that . How many divisors does the number A have?
Câu 10:
Given that . How many divisors the number A have?
