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Secondary 1 | Maths
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Date Posted: 4 years ago
Views: 205
do long division table or
multiplication of factors:
315
= 3 x 105
= 3x3 x 35
= 3x3x5x7
378
= 2 x 189
= 2x3 x 63
= 2x3x3 x 21
= 2x3x3x3x7
392
= 2 x 196
= 2x2 x 98
= 2x2x2 x 49
= 2x2x2x7x7
common factors: one 7
whole no. is
7 x 2x2x2 x 3x3x3 x 5 x 7
= 52920
.
.
.
multiplication of factors:
315
= 3 x 105
= 3x3 x 35
= 3x3x5x7
378
= 2 x 189
= 2x3 x 63
= 2x3x3 x 21
= 2x3x3x3x7
392
= 2 x 196
= 2x2 x 98
= 2x2x2 x 49
= 2x2x2x7x7
common factors: one 7
whole no. is
7 x 2x2x2 x 3x3x3 x 5 x 7
= 52920
.
.
.
See 1 Answer
done
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Break each number up into the product of prime numbers (2, 3, 5, 7....)
Look at these products. For each prime number, select the highest power.
That would be the underlined numbers in the image.
Multiply them together to get the lowest common multiple of the three numbers.
Look at these products. For each prime number, select the highest power.
That would be the underlined numbers in the image.
Multiply them together to get the lowest common multiple of the three numbers.
Date Posted:
4 years ago
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