Question

do the ticked question

Chapter name - Factors​

Answer 1

Answer:

No, it's not a ticked question.

Answer 2

Answer:

1. 2, 3, 5, 7, 11, 13, 17, 19, 23, 29

2. 79, 83, 89, 97

3. The composite numbers between 20 and 30 are: 20, 21, 22, 24, 25, 26, 27, 28, and 30.

4. prime- 101,109,113,127,131 others composit

5. Answer. (5, 7), (11, 13) and (17, 19) are the three pairs of prime numbers whose difference is 2.

6. 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97

7. Prime numbers are the numbers with two factors, 1 and the number itself. A pair of prime numbers whose difference is 2, is called twin prime.

8. There are two ways to write 32 as the sum of two prime numbers: i) 13 + 19 = 32 ii) 3 + 29

= 32

10. greatest prime numbers less than 5,13,22,49,55,70,88,100 are 3,11,19,47,53,67,83,97.... odd numbers which are less than 5,13,22,49,55,70,88,100 are 3,11,21,47,53,69,87,99...

11.even -32, 44, 64, 292, 90926 others are

odd

12.the smallest numberthat should be subtracted from 15.78 is 1 , since 15.78 is divisible by 2 , but when we will subtract 1 from it , we will get 15.77 which will notbe divisible by 2 and hence will be an odd number . sorry u told only ticked I done this leave it

13.a)even, b)odd, c)even, d) odd

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