Largest whole number which is the factor of both 42 and 98
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the largest whole number which is the factor of both 42 and 98 is 14.
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Answer: 14
Step-by-step explanation:
Largest whole number which is the factor
In other words highest common factor (HCF)
To find HCF, you have to write down the numbers as a product of its prime numbers.
42 = 2 x 3 x 7
98 = 2 x 7 x 7
To find HCF what are the common factors for both?
2 and 7
How many twos and sevens are common?
Only one
So 2 x 7
=14
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