Question

Find the prime and composite numbers between 1 to 100. Hint: Step 1 : Cross out 1. Step 2 : Cross out all the even numbers except 2. Step 3 : Cross out all the multiples of 3 except 3. Step 4 : Cross out all the multiples of 5 except Step 5 : Cross out all the multiples of 7 except 7. Prime Numbers (which are not crossed out): …………………………… Composite Numbers (which are crossed out): …………………………..

Answer 1

Answer:

prime number are: 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97. composite numbers are : 4 6 8 9 10 12 14 15 16 18 20 21 22 24 25 26 27 28 30 32 33 34 35 36 38 39 40 42 44 45 46 48 49 50 51 52 54 55 56 57 58 60 62 63 64 65 66 68 69 70 72 74 75 76 77 78 80 81 82 84 85 86 87 88 90 91 92 93 94 95 96 98 99 100