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A prime factor B prime number C divisor D multiple 5 is a prime factor of 20 b prime number C divisor D multiple
A and C
How many primes are there in all divisors of the product of 1 * 2 * 3 * 4 - * 30
How many primes are there in all divisors of the product of 1 * 2 * 3 * 4 - * 30? You need to know the definition of primes. Then the answer to the above question is how many primes are there from 1 to 30. There are 7 primes in total, including 1, 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29
The greatest divisor of three prime numbers is one and the least common multiple is 105. These three prime numbers are (), (), ()
The greatest divisor of the three prime numbers is 1, and the least common multiple is 105. The three prime numbers are (3), (5), (7)
The greatest divisor of the three prime numbers is 1, the least common multiple is 105, and 105 = 3 × 5 × 7, so the three prime numbers are 3, 5 and 7
RELATED INFORMATIONS
- 1. There is a natural number, which has four different prime factors and 32 divisors. One of the prime factors is two digits, and the sum of its numbers is 11, which is the natural minimum
- 2. A natural number has 10 different divisors, but its prime factor is only 3 and 5. What is the maximum natural number satisfying these conditions? Urgent! 1
- 3. 4 and 5 are () A. factor B. divisor C. prime D. prime factor
- 4. It is proved that the least common multiple of the n power of a and the n power of B is equal to the n power of the least common multiple of a and B Like the title,
- 5. A = 2 × 3 × m, B = 2 × 5 × n (M and N are prime numbers). If the greatest common factor of a and B is 6 and the least common multiple is 210, what are m and N respectively
- 6. A = 2 × 3 × N2, B = 3 × N3 × 5, (n is prime), then the greatest common divisor of a and B is______ The least common multiple is______ ．
- 7. Use three prime numbers smaller than 10 to form a three digit number, so that the number is a multiple of 3 and 5 at the same time. The three digit number is () or ()
- 8. Use the prime numbers in ten to form two digits. The common multiple of 2 and 3 is 90%, and the common multiple of 4 is ()
- 9. How many numbers in 150 are the product of three different prime numbers Is there a proper way to use it? I'll go straight to the count.
- 10. The product of the three primes is 110. The three primes are (), (), ()
- 11. It is known that "if three prime numbers a, B and C greater than 3 satisfy the relation 2A + 5B = C, then a + B + C is a multiple of integer n". What is the maximum possible value of integer n in this theorem? Please prove your conclusion
- 12. It is known that "if three prime numbers a, B and C greater than 3 satisfy the relation 2A + 5B = C, then a + B + C is a multiple of integer n". What is the maximum possible value of integer n in this theorem? Please prove your conclusion
- 13. It is known that "if three prime numbers a, B and C greater than 3 satisfy the relation 2A + 5B = C, then a + B + C is a multiple of integer n". What is the maximum possible value of integer n in this theorem? Please prove your conclusion
- 14. (1) The sum of the two of us is 8 (2). The product of the two of us is 15 prime All are prime numbers
- 15. It is known that the product of two prime numbers is 178. These two prime numbers are () and ()
- 16. The sum of the two prime numbers a and B is 2001. What is the product of the two prime numbers?
- 17. The sum of two prime numbers is 2001, and the product is?
- 18. The product of two different prime numbers whose sum is 52 is the largest () and the smallest ()
- 19. The sum of three prime numbers is 52, and the product of them is the largest______ ．
- 20. Divide 406 into the sum of two prime numbers and find the minimum value of their product