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प्रश्न
The sum of three prime numbers is 80. The difference of two of them is 4. Find the numbers
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उत्तर
Given the sum of three prime numbers is 80
The numbers will be one or two-digit prime numbers. Also one of them is 2
Sum of the remaining 2 numbers = 78 ...[∵ one number must be even]
Also, their difference = 4 ....(Given) [Otherwise sum of three odd numbers is odd]
The numbers will be 37 and 41
The required numbers are 2, 37, 41
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संबंधित प्रश्न
Write all the prime numbers between:
10 and 40
Express the following number as the sum of two odd prime:
36
Express the following number as the sum of two odd prime:
42
Express the following number as the sum of twin prime:
36
Show that the following pairs are co-primes:
161, 192
Show that the following pairs are co-primes:
385, 621
Which of the following is a prime number?
Write 'T' for true and 'F' for false for the following statement.
Every even number is composite.
The only even prime number is ________________
A number which has only two factors is called a ______.
