All natural numbers above 2 can be decomposed into prime factors? (judgment question) explain the reason!

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• 1. 6 judgment questions Non zero natural numbers are either prime numbers or composite numbers A circle with a radius of 2 cm has the same perimeter and area When the diameter of the wheel is fixed, the distance traveled is directly proportional to the number of wheel revolutions 3 / 8 of the numerator plus 6, in order to keep the size of the fraction unchanged, the denominator should be expanded to 6 times the original Add 0 to the end of the decimal or remove 0, the size of the decimal remains unchanged Two cylinders have the same volume and the same surface area
• 2. 99 and 21 / 22 times 22 =?
• 3. How to solve the problem of 5.1 × 3x + 5 × 3 = 41?
• 4. (question 1) 3x / 4 + 1 / 2 = 45 times 1 / 3 (question 2) 0.6:35% = 1 / 5: X
• 5. 3x / 2 + 1 = 7 / 6 + X
• 6. The ratio of 2:2:1.5 is (). If the first term is multiplied by 8, the ratio will remain unchanged and the second term will become ()
• 7. 8.6*2.7+62*14%+35*0.86 121+27+121*60+121*16+79*91+12*79 8.6*2.7+62*14%+35*0.86 121+27+121*60+121*16+79*91+12*79 It's a simple calculation
• 8. 12 and 1 / 3 of 3 / 4 of 3 / 14 of 5 / 16 of 7 * 2 and 2 / 3 + 1 / 7 = how much
• 9. 5 / 7 + 2 / 7, 1 / 6 + 1 / 6, 4 / 11-4 / 11, 3 / 14 + 5 / 14, 9 / 16-5 / 16 6 / 17 + 3 / 17, 15 / 13-5 / 13
• 10. How many times of 27 is 35? How many times of 35 is 21? This is our fifth grade paper. The answer can be scores or numbers,
• 11. 99.30.28.46.54 how to decompose the mass factor
• 12. What is the decomposition quality factor of 12? Is there a standard definition?
• 13. What is the factorization quality factor
• 14. (- 5 1 / 3) times (+ 1 7 / 8) times (- 2 1 / 5) Multiplication of rational numbers,
• 15. 8.5 times 3 / 4 plus 3 / 4 times 5 is like 6.5 times 3 / 4
• 16. 3.78 is made up of three parts______ , 7______ And eight______ It's made up of
• 17. Judgment question: 36 / 100 meters can also be written as 36% meters ()
• 18. How many numbers are bigger than 0.7 and smaller than 0.8? How many two decimal places are bigger than 0.7 and smaller than 0.8
• 19. Sugar is 1 / 4 of water
• 20. The reciprocal of a number must be smaller than the number by 3 / 4, and the score unit is larger than 2 / 3 Add 0 to the end of a number or remove 0, the size of the number remains unchanged [] The sum of two prime numbers must be even There are nine factors for 36 Four out of seven branches plus eight. If the size of the fraction remains the same, 14 should be added to the denominator