ABA12A - Help Balaji!
Balaji was reading number theory. When reading about primes, he was thinking about numbers which could be expressed as a product of primes. He wanted to know the largest number in a range which could be expressed as a product of primes. Balaji’s maths teacher is not so good at maths and so he was taught that 1 is prime. You, being a good programmer, help him with the task.
Input
The first line of input consists of C, the number of test cases, followed by C lines containing two space separated numbers a and b, the first and last number in the range (inclusive).
1 < C < 100
0 < A < B < 1e12
0 < B - A < 1e6
Output
For each test case, print a single line containing the largest number which can be represented as a product of primes, considering 1 to be prime.
Example
Input: 1 1 4 Output: 4
Explanation of Test Case
4 can be expressed as 2 × 2.
hide comments
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theycallhimavi:
2012-03-15 09:00:02
certainly B except zero should be the answer but it is not.. :/ |
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Shashank_Jain:
2012-03-13 07:25:59
most ironic question ever!!! |
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(^_^):
2012-02-24 13:04:25
should not be in the classical.
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DoRMaNT_LuNaTiC:
2012-02-10 17:26:22
it should not have 0.25 points weightage |
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kartik:
2012-02-08 19:00:11
so any number can be expressed here as product of primes ...can anyone suggest cases where a number can't be ? |
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Abhishek Goel:
2012-02-06 09:59:44
LOL Question |
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Lukmanul Hakim:
2012-01-27 12:27:36
Is any number can be expressed as product of primes? :O |
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Garima Sachan:
2012-01-26 21:06:03
Ye |
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vicky raj:
2012-01-26 15:56:14
if a=1 and b=12.is 12 the output(2*2*3). |
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vicky raj:
2012-01-26 15:55:02
is the number to be printed is product of two primes?
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| Added by: | Kashyap Krishnakumar |
| Date: | 2012-01-10 |
| Time limit: | 1s |
| Source limit: | 50000B |
| Memory limit: | 1536MB |
| Cluster: | Cube (Intel G860) |
| Languages: | All except: ASM64 |
| Resource: | Own problem |
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