Advertisements
Advertisements
Question
Show that the following pairs are co-primes:
343, 432
Advertisements
Solution
The given numbers are 343 and 432.
We have:
Now, 343 = 7 × 7× 7 × 1 = 73 × 1
432 = 2 × 2× 2 ×2 × 3× 3 ×3 = 24 × 33 × 1
∴ HCF =1
Hence, 343 and 432 are co-primes.
APPEARS IN
RELATED QUESTIONS
What are prime numbers? Give ten examples.
Express the following number as the sum of twin prime:
144
State the following statement is True or False.
The sum of two prime numbers is always a prime number.
Show that the following pair is co-prime.
847, 1014
Write seven consecutive composite numbers less than 100 having no prime number between them.
Which of the following are co-primes?
Write 'T' for true and 'F' for false for the following statement.
The sum of two odd numbers is always odd.
Write 'T' for true and 'F' for false for the following statement.
The HCF of two given numbers is always a factor is their LCM.
Find the prime numbers in the list given below.
22, 37, 43, 48, 53, 60, 91, 57, 59, 77, 79, 97, 100
Express the following number as the sum of three odd primes:
53
