12
5. Segregate even and odd numbers.
a. 5,24,365
c. 10,000 e. 5.81.297 g. 90,65.345
i. 92.784
b. 78.293 d. 30.602 f. 21.004 h. 1986 j. 56,000
6. State whether the following are prime or composite numbers.
e. 31
i. 67
b. 71
d. 20
f. 29
h. 56
j. 58
3. Find out the twin prime sets.
2. (5.2)
e. (7,11) e. (41, 43)
g. (29, 31)
i. (6.8)
b. (5.3) d. (71, 73) f. (23, 29) h. (62,64) j. (11, 13)
2. 12
g. 97
C. 15
k. 83
1. 45
m. 57
IL. 41
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Answer:
1. (a) Odd (b) Odd (c) Even (d) Even (f) Even (h) Even (i) Even (j) Even
2. (b) Prime (d) Composite (e) Prime (f) Prime (h) Composite (i) Prime (j) Composite
3. The twin prime sets are - (41,43), (29,31), (3,5), (71,73) , (11,13)
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