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The highest common factor of 70 and 245 is equal to _____.

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Important Questions on Number Systems

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How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 87
Find the least number which must be subtracted from 7147 to make it a perfect square.
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How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 88
Find the lowest perfect square which is divisible by 6, 8, and 15.
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How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 89
Find the least number by which 30492 must be multiplied or divided, so as to make it a perfect square.
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How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 90
The greatest four-digit number exactly divisible by 88 is _____.
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How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 91
By how much is three-fourth of 116 greater than four-fifth of 45?
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How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 92
If 5625 plants are to be arranged in such a way that there are as many rows as there are plants in a row, then the number of rows will be _____.
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How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 93
A boy took a seven-digit number ending in 9, and raised it to an even power greater than 2000. He then took the number 17, and raised it to a power which leaves the remainder 1 when divided by 4. If he now multiplies both the numbers, what will be the unit's digit of the number he so obtains?
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How to prepare for Quantitative Aptitude for the CAT>Chapter 1 - Number Systems>Level of Difficulty>Q 94
Two friends were discussing their marks in an examination. While doing so, they realised that both the numbers had the same prime factors, although Raveesh got a score which had two more factors than Harish. If their marks are represented by one of the options as given below, which of the following options would correctly represent the number of marks they got?