Question

Number of odd divisors of 64

Answer 1

Answer:

The list of all positive divisors (i.e., the list of all integers that divide 64) is as follows: 1, 2, 4, 8, 16, 32, 64. For 64 to be a prime number, it would have been required that 64 has only two divisors, i.e., itself and 1.

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Answer 2

Step-by-step explanation:

To find the number of odd factors (which includes 1), we can exclude any power of 2 and do the same. For 540, we have (3 + 1)(1 + 1) = 8 odd positive factors. To find the number of even factors, we can multiply the number of odd factors by the power of 2 (not the power of 2 + 1!!!).