How many are the total factors of 75? What are prime numbers and composite numbers?

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• 1. In a factor of 75, the prime has______ The total number is______ ．
• 2. What are the prime and composite numbers from 0 to 100? To classify,
• 3. What are the prime and composite numbers from 100 to 700? What are the prime and composite numbers from 100 to 700? What are the prime and composite numbers from 100 to 700? What are the prime and composite numbers from 100 to 700?
• 4. What's the difference between prime numbers and composite numbers?
• 5. How to judge prime number and composite number quickly Do me a favor
• 6. How to judge prime number and composite number quickly It's too much trouble to find the approximate number!
• 7. Write two composite numbers so that the sum of them is prime and the sum is the smallest______ And______ ．
• 8. The concept of prime number and composite number
• 9. What are the definitions of composite number and prime number,
• 10. What is the concept of prime number? Is 2 a prime number? Is prime number a composite number? Please answer these three questions in turn
• 11. In a factor of 75, the prime has______ The total number is______ ．
• 12. Of all the factors of 30, how many are prime numbers? How many are composite numbers?
• 13. Among the factors of 12, what is the prime number and what is the total number
• 14. Among the factors of 42, what are the composite numbers and the prime numbers
• 15. A composite number has at least three factors; a prime number has only two factors, which are () and ()
• 16. Is 2011 prime or composite?
• 17. Is 0 prime or composite most urgent
• 18. Is 493 prime or composite
• 19. Verify whether 1001 is prime or composite
• 20. In 1, 2, 3, 4, 9, 41 and 51, () is odd, () is even, () is prime, () is composite, () is odd but not even In 1, 2, 3, 4, 9, 41 and 51, () is odd, () is even, () is prime, () is composite, () is odd but not prime, () is even but not composite In non-zero natural numbers, the smallest prime number is (), the smallest composite number is (), the smallest odd number is (), and the smallest even number is () The maximum factor and the minimum multiple of a number are 24. This number is () and its divisor is () Given a = 2 × 3 × 5, B = 2 × 3 × 3, then the greatest common factor of a and B is () and the least common multiple is () Add three different numbers after 837 to form a minimum six digit number () A = 2 × 3 × 7, B = 3 × 5 × 7, the greatest common factor of a and B is (), and the least common multiple of a and B is () The sum of two continuous natural numbers is 13. The greatest common factor of these two continuous natural numbers is () and the least common multiple is () If a = B + 1, a and B are all natural numbers greater than 0, then the greatest common factor of AB is () and the least common multiple () Write all the factors of 10 as (). Among these factors, () is prime number, () is composite number, () is neither prime nor composite number There are 12 or 16 students in each row in class one of grade five in a primary school. There is one more in each row. There are less than 60 students in this class, and there are () students in this class In the formula 24 = 3 × 8, 3 and 8 are the () A prime factor B factor C prime number Natural numbers are made up of () A odd and even B prime and composite C prime, composite and 0 Two different odd sums must be () A prime B odd C Composite Two numbers () two numbers are infinite A common factor B common multiple c common factor and common multiple The product of multiplication of any two different prime numbers has at least () different factors A4 B3 C cannot be determined judge Two numbers are coprime, and their greatest common factor is 1 () The sum of minimum natural number, minimum prime number and minimum composite number is 7 () In non-zero natural numbers, except prime numbers, they are composite numbers () When counting 2492 ／ 43, you usually look at the divisor () to test the quotient. If you don't count it, you can see that the quotient of this problem is () digits After subtracting four times from 120, the result is 12 If two numbers are divided, the quotient is 9, the remainder is 6, and the smallest divisor is () Seven out of nine fractional units are (), it has () such units, plus () so that the units become the minimum prime Describe two subtraction expressions () and () Write two division expressions () and () The quotient of a divided by B is 0.4, the sum of a and B is 21, a is (), B is () If two numbers are multiplied, the product is 10.8. If one factor is multiplied by 10 and the decimal point of the other factor is moved one place to the left, then their product is () If the divisor and divisor are reduced to 10 times of the original, the quotient is (), and the remainder is () Application problems (each step is detailed, solved by arithmetic) A runs 3 meters per second, B runs 4 meters per second, C runs 2 meters per second. The three run from the same point along the 600 meter circular track. How long does it take for the three to start from the starting point at the same time In PE class, there are 40 students playing trampoline. If every 6 students are just divided into a group, how many more people will be needed at least?