Page 74 - Maths Class 04
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Properties of Prime and Composite Numbers
« 0 is considered as an even number.
« 1 is neither prime nor a composite number.
« Every number other than 1 is either a prime or a composite number.
« Except 2, all prime numbers are odd. 2 is only even but prime.
Practice - 5.3
Practice - 5.3
Practice - 5.3
Practice - 5.3
1. Find the number if it is prime or composite.
a. 71 b. 75 c. 90
Prime Prime Prime
Composite Composite Composite
d. 69 e. 29 f. 55
Prime Prime Prime
Composite Composite Composite
2. Circle the prime numbers.
6 42 3 21 10 11 2 22 14 23 5
52 41 47 29 50 53 54 28 60 46 30
3. Circle the composite numbers.
15 51 92 79 7 21 80 17 8 97 73
11 83 19 62 49 23 32 67 3 4 18
Even and Odd Numbers
Even Numbers : Numbers which are divisible by 2 are called even numbers .
Such as : 2, 4, 6, 10, etc.
Odd Numbers : Numbers which are not divisible by 2 are called odd
numbers. Such as : 3, 9, 15, 21, 23, etc.
Mathematics-4 74
