VERY SHORT ANSWER
Which of the following numbers are prime?
(a) 23 (b) 26 (c) 47
23 and 47
Write down the factors of:
20
– 1, 2, 4, 5, 10 and 20
Find the HCF of 30 and 42.
6
The whole number between 0 to 5 are ?
1,2,3,4
Eight thousand twelve
8,012
Which is the smallest even prime number?
2
Write down the factors of: 36
1, 2, 3, 4, 6, 9, 12, 18 and 36
Three bells toll at intervals of 9, 12 and 15 minutes. If they start tolling together, after what time they will next toll together?
3 hrs
The greatest 5-digit number is
(a) 99999
(b) 100000
(c) 98765
(d) 56789
99999
Seventy thousand fifty three
70,053
What is the LCM of two co-prime numbers?
1
Write first five multiples of:
15
15, 30, 45,60, 75
The product of a whole number and zero is?
Whole number
Smallest 8-digit number is
(a) 10000001
(b) 99999999
(c) 10000000
(d) 999999998
10000000
Five lakh seven thousand four hundred six
5, 07, 406
What is the HCF of two consecutive odd numbers?
1
Write first five multiples of:
26
26, 52, 78, 104, 130
The numbers which we use for counting are known as.
527864 using commas in Indian as well as International System of Numeration is
(a) 527864
(b) 5,27,864
(c) 527,864
(d) 52,78,64
527,864
Six lakh two thousand nine
6, 02, 009
Which of the following numbers are co-prime?
(a) 8 and 15 (b) 17 and 34
8 and 15
Write the prime numbers between 10 and 40.
11, 13, 17, 19, 23, 29, 31, 37
The sum of two natural numbers is?
8945673 using commas in International System of Numeration.
(a) 8,945,673
(b) ,945,673
(c) 8,945673
(d) 8945673
8,945,673
Thirty lakh eleven thousand one
30, 11, 001