Frequently Asked Questions
Express each number as a product of its prime factors
(i) 140
(ii) 156
(iii) 3825
(iv) 5005
(v) 7429
Solution:
Explanation:
Let use the prime factorization method to prime factorize the provided numbers, then multiply the prime numbers to get the product of the prime numbers.
(i) Prime factorization of
140 = 2x2x5x7
= 22x5x7
(ii) Prime factorization of
156 = 2x2x3x13
= 22x5x7
(iii) Prime factorization of
3825 = 3x3x5x5x17
= 32x52x17
(iv) Prime factorization of
5005 = 5x7x11x13
(v) Prime factorization of
7429 = 17x19x23
Final Answer:
(i) 140 = 22x5x7
(ii) 156 = 22x3x13
(iii) 3825 = 32x52x17
(iv) 5005 = 5x7x11x13
(v) 7429 = 17x19x23
If a number reads Eleven lakh seventy thousand six hundred seven
Find the missing digit. 11,70,_07
A: 3
B: 6
C: 2
D: 5
Solution:
Explanation:
Let's do the following to convert the supplied number from words to numbers:
Seventy thousand = 70,000
Eleven lakh = 11,00,000
Six hundred = 600
Seven = 7
Now, as indicated below, add the numerals:
11,00,000 + 70,000 + 600 + 7 = 1170607
As a result, the necessary number is 11,706,607.
Correct Option is: (B)
Final Answer:
Hence, in 70, —7 the missing digit is 6.
Write down, in figures, seventeen thousand and seventeen
Solution:
Explanation:
Seventeen thousand = 17,000
Seventeen = 17
As a result, seventeen thousand and seventeen is 17,017.
Final Answer:
In figures, seventeen thousand and seventeen is 17,017.
The number 826315269 can be written in International system of numeration as
A: Eight hundred twenty six million three hundred fifteen thousand two hundred sixty nine
B: Eighty two crore sixty three lakh fifteen thousand two hundred and sixty nine
C: Eight two six lakh three one thousand fifty two hundred sixty nine
D: None of these
Solution:
Correct Option is: (A) Eight hundred twenty six million three hundred fifteen thousand two hundred sixty nine
Explanation:
- In the International System of Numeration, as it is being used we have ones, tens, hundreds, thousands and then millions.
- One million is a thousand thousands.
- Commas are used to mark thousands and millions.
- It comes after every three digits from the right.
- The first comma marks thousands and the next comma marks millions.
- The number given is .
- It is written in the International System as i.e., Eight hundred twenty six million three hundred fifteen thousand two hundred sixty nine.
Fractions with the same denominator are called fractions.
Solution:
Explanation:
- When the denominator is same in any two or more fractions then fraction are called like fraction.
Final Answer:
Hence, fractions with the same denominator are called like fractions.
