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Secondary 1 | Maths
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I need help with B I'm not sure how too. Please help, thank you
Date Posted: 3 years ago
Views: 248
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2 of the 8 factors are 8 and 28.
So the Unknown factors are
__,___,____,___,___,____,8,28.
From part (a)
We can see that the factors of 126 are
1,2,3,6,7,18,21,42,63,126
We can infer from part (a) that 1 and its number are the factors of the number. So we can safely say that 1 is among the 8 factors.
1,___,___,___,___,___,8,28
We can also see that factors of 63 includes 3 and 21 as well as factors of 42 are 6 and 7 and factors of 21 are 3 and 7.
What we can say about the factors is that. Factors of the particular factor are also the factors of the number.
So factors of 8 are 1,2,4,8
28 are 1,2,4,7,14,28
So we can say that the factors are
1,2,4,7,8,14,28,___
However now we only have 7 factors.
Factors are arranged in the way such that 1 factor multiply by last factor would give us the main number. And the second factor multiply by the second last factor would give us the same number.
Hence, 28 x 2 = 56.
And therefore your 8 factors are
1,2,4,7,8,14,28,56
So the Unknown factors are
__,___,____,___,___,____,8,28.
From part (a)
We can see that the factors of 126 are
1,2,3,6,7,18,21,42,63,126
We can infer from part (a) that 1 and its number are the factors of the number. So we can safely say that 1 is among the 8 factors.
1,___,___,___,___,___,8,28
We can also see that factors of 63 includes 3 and 21 as well as factors of 42 are 6 and 7 and factors of 21 are 3 and 7.
What we can say about the factors is that. Factors of the particular factor are also the factors of the number.
So factors of 8 are 1,2,4,8
28 are 1,2,4,7,14,28
So we can say that the factors are
1,2,4,7,8,14,28,___
However now we only have 7 factors.
Factors are arranged in the way such that 1 factor multiply by last factor would give us the main number. And the second factor multiply by the second last factor would give us the same number.
Hence, 28 x 2 = 56.
And therefore your 8 factors are
1,2,4,7,8,14,28,56
Thank you ^^
done
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Hi N L,
You"ll need to list down the factors of 8 & 28 in this way:
Factors of 8: 1,2,4,8
Factors of 28: 1,2,4,7,14,28
From above, you have 7 factors of the number required. To find its 8th and last factor, obtain the LCM of 8 & 28 as shown in photo.
Hence, the 8 factors are 1,2,4,7,8,14,28 & 56
You"ll need to list down the factors of 8 & 28 in this way:
Factors of 8: 1,2,4,8
Factors of 28: 1,2,4,7,14,28
From above, you have 7 factors of the number required. To find its 8th and last factor, obtain the LCM of 8 & 28 as shown in photo.
Hence, the 8 factors are 1,2,4,7,8,14,28 & 56
Date Posted:
3 years ago
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