Question

If A={x:x is prime factor of 16} , B={x:x is prime factor of 15 ,C={x:x is HCF of (4,6)}find AnB and what do you observe from set A and C
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Answer 1

Step-by-step explanation:

16=1×16

=2×8

=4×4

so, the prime factor in here is 2

:A={2}

15=1×15

=3×5

so, the prime factors of 15 are 3,5

B={3,5}

the hcf of 4,6 is 2, so, c={2}

so, a intersection b = {}

a union b={2,3,5}

by observing set a and c I found that the a and c contain same material 2