A number is less than 50.It is a multiple of 7 and it has 3 prime factors. what is that number? a)14 b)42 c)49 ď)35
Answers
Answered by
29
In these options, 42 is the only number which is so possible.
42 - 1 X 42
- 2 X 21
- 3 X 14
- 6 X 7
Here, 2, 3 & 7 are the only three prime factors
Hence the option is C.
42 - 1 X 42
- 2 X 21
- 3 X 14
- 6 X 7
Here, 2, 3 & 7 are the only three prime factors
Hence the option is C.
Answered by
8
the answer is 49 because
step by step ::
write 7 table
7
14
21
28
35
42
49
56
63
and 70
so the main step is finding .. find the 3 prime factors number ....
yes so 42
1×42
2×21
3×14
6×7
hope it is helpful
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