16 25 36 49 81 100
The numbers in the box are square numbers.
a) How many factors does each of these numbers have?
b) Is it true that a square number always has an odd number of factors? Give a reason for your answer.
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Answer:
a) 16 has 4 factors
25 has 2 factors
36 has 4 factors
49 has 2 factors
81 has 4 factors
100 has 4 factors
b) no
Step-by-step explanation:
16 = 2 × 2 × 2 ×2
25 = 5×5
36 = 2×3×2×3
49=7×7
81=3×3×3×3
100=2×5×2×5
b) as u can see from above the number of factors for the above given squares is either 2 or 4
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