Page 9 - SPARK OF MATH book 6
P. 9
(1-3) Prime and Composite Numbers.
When dividing numbers to find their factors you will come
across two types of numbers:
Prime number—has only two factors, 1 and itself.
Example:
5 is a prime number
because the only factors are 1 and 5.
Composite number—has more than two factors.
Example:
15 is a composite number, because there are more than two
factors.
15, 5, 3,1
Circle all the prime numbers.
13 54 37 96 89 45 61
29 2 10 96 39 53 47
Circle all the Composite numbers.
73 92 79 7 21 80 17
11 4 23 32 67 3 49
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