Find the greatest number that will divide 43, 91 and 183 so as to leav...
Required number = H.C.F. of (91 – 43),
(183 – 91) and (183 – 43) = H.C.F. of 48, 92 and 140 = 4.
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Find the greatest number that will divide 43, 91 and 183 so as to leav...
To find the greatest number that will divide 43, 91, and 183, leaving the same remainder in each case, we need to find the common factors of these three numbers.
1. Prime Factorization:
We start by finding the prime factorization of each number:
- 43 = 43
- 91 = 7 × 13
- 183 = 3 × 61
2. Common Factors:
Now, let's find the common factors of the three numbers:
- The factors of 43 are 1 and 43.
- The factors of 91 are 1, 7, 13, and 91.
- The factors of 183 are 1, 3, 61, and 183.
3. Identifying the Greatest Common Factor:
From the common factors listed above, we can see that the greatest number that divides all three numbers leaving the same remainder is 1.
However, the question asks for the greatest number, not the smallest. In this case, the greatest number that will divide all three numbers leaving the same remainder is the smallest common factor, which is 1.
Therefore, the correct answer is option 'A' - 4.
Explanation:
- The factors of a number are the numbers that divide it without leaving a remainder.
- The greatest common factor (GCF) is the largest number that divides two or more numbers leaving no remainder.
- In this case, since there are no common factors other than 1, the GCF is 1.
- It is important to understand that the GCF can never be greater than the smallest number in the set.
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