Advertisements
Advertisements
प्रश्न
The exponent of 2 in the prime factorisation of 144, is
पर्याय
4
5
6
3
उत्तर
Using the factor tree for prime factorization, we have:
Therefore,
`144 =2xx2xx2xx2xx3xx3`
`144=2^4xx3^2`
Thus, the exponent of 2 in 144 is 4.
Hence the correct choice is (a).
APPEARS IN
संबंधित प्रश्न
Show that any positive odd integer is of the form 4q + 1 or 4q + 3, where q is some integer.
Find the greatest possible length which can be used to measure exactly the lengths 7m, 3m 85cm and 12m 95cm
An electronic device makes a beep after every 60 seconds. Another device makes a beep after every 62 seconds. They beeped together at 10 a.m. At what time will they beep together at the earliest?
If a and b are relatively prime, what is their LCM?
Express each of the following integers as a product of its prime factors:
420
Find the least number that is divisible by all the numbers between 1 and 10 (both inclusive).
Prove that \[2\sqrt{3} - 1\] is an irrational number.
If 3 is the least prime factor of number a and 7 is the least prime factor of number b, then the least prime factor of a + b, is
When the positive integers a, b and c are divided by 13 the respective remainders is 9, 7 and 10. Find the remainder when a b + + 2 3c is divided by 13